Latest update completely failed - by Laurent

My site headers and footers are all messed up and the customizer doesn’t load so I can’t fix anything. Troubleshooting steps I have already taken, which didn’t help:
– turned off all plugins except must use
– purged cache, cloudflare, and browser cache
– rolled back updates via hosting backup
None of these helped.

Here are the errors from the console:

jquery-migrate.min.js?ver=3.3.2:2 JQMIGRATE: Migrate is installed, version 3.3.2
mouse.min.js?ver=1.12.1:11 Uncaught TypeError: o.widget is not a function
at mouse.min.js?ver=1.12.1:11
at mouse.min.js?ver=1.12.1:11
at mouse.min.js?ver=1.12.1:11
(anonymous) @ mouse.min.js?ver=1.12.1:11
(anonymous) @ mouse.min.js?ver=1.12.1:11
(anonymous) @ mouse.min.js?ver=1.12.1:11
sortable.min.js?ver=1.12.1:9 Uncaught TypeError: u.widget is not a function
at sortable.min.js?ver=1.12.1:9
at sortable.min.js?ver=1.12.1:9
at sortable.min.js?ver=1.12.1:9
(anonymous) @ sortable.min.js?ver=1.12.1:9
(anonymous) @ sortable.min.js?ver=1.12.1:9
(anonymous) @ sortable.min.js?ver=1.12.1:9
draggable.min.js?ver=1.12.1:9 Uncaught TypeError: P.widget is not a function
at draggable.min.js?ver=1.12.1:9
at draggable.min.js?ver=1.12.1:9
at draggable.min.js?ver=1.12.1:9
(anonymous) @ draggable.min.js?ver=1.12.1:9
(anonymous) @ draggable.min.js?ver=1.12.1:9
(anonymous) @ draggable.min.js?ver=1.12.1:9
droppable.min.js?ver=1.12.1:9 Uncaught TypeError: a.widget is not a function
at droppable.min.js?ver=1.12.1:9
at droppable.min.js?ver=1.12.1:9
at droppable.min.js?ver=1.12.1:9
(anonymous) @ droppable.min.js?ver=1.12.1:9
(anonymous) @ droppable.min.js?ver=1.12.1:9
(anonymous) @ droppable.min.js?ver=1.12.1:9
resizable.min.js?ver=1.12.1:11 Uncaught TypeError: w.widget is not a function
at resizable.min.js?ver=1.12.1:11
at resizable.min.js?ver=1.12.1:11
at resizable.min.js?ver=1.12.1:11
(anonymous) @ resizable.min.js?ver=1.12.1:11
(anonymous) @ resizable.min.js?ver=1.12.1:11
(anonymous) @ resizable.min.js?ver=1.12.1:11
controlgroup.min.js?ver=1.12.1:9 Uncaught TypeError: u.widget is not a function
at controlgroup.min.js?ver=1.12.1:9
at controlgroup.min.js?ver=1.12.1:9
at controlgroup.min.js?ver=1.12.1:9
(anonymous) @ controlgroup.min.js?ver=1.12.1:9
(anonymous) @ controlgroup.min.js?ver=1.12.1:9
(anonymous) @ controlgroup.min.js?ver=1.12.1:9
checkboxradio.min.js?ver=1.12.1:9 Uncaught TypeError: o.widget is not a function
at checkboxradio.min.js?ver=1.12.1:9
at checkboxradio.min.js?ver=1.12.1:9
at checkboxradio.min.js?ver=1.12.1:9
(anonymous) @ checkboxradio.min.js?ver=1.12.1:9
(anonymous) @ checkboxradio.min.js?ver=1.12.1:9
(anonymous) @ checkboxradio.min.js?ver=1.12.1:9
button.min.js?ver=1.12.1:11 Uncaught TypeError: o.widget is not a function
at button.min.js?ver=1.12.1:11
at button.min.js?ver=1.12.1:11
at button.min.js?ver=1.12.1:11
(anonymous) @ button.min.js?ver=1.12.1:11
(anonymous) @ button.min.js?ver=1.12.1:11
(anonymous) @ button.min.js?ver=1.12.1:11
slider.min.js?ver=1.12.1:11 Uncaught TypeError: r.widget is not a function
at slider.min.js?ver=1.12.1:11
at slider.min.js?ver=1.12.1:11
at slider.min.js?ver=1.12.1:11
(anonymous) @ slider.min.js?ver=1.12.1:11
(anonymous) @ slider.min.js?ver=1.12.1:11
(anonymous) @ slider.min.js?ver=1.12.1:11
iris.min.js?ver=1.0.7:5 Uncaught TypeError: a.widget is not a function
at iris.min.js?ver=1.0.7:5
at iris.min.js?ver=1.0.7:5
(anonymous) @ iris.min.js?ver=1.0.7:5
(anonymous) @ iris.min.js?ver=1.0.7:5
color-picker.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2 Uncaught TypeError: i.widget is not a function
at color-picker.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
at color-picker.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
(anonymous) @ color-picker.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
(anonymous) @ color-picker.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
wp-color-picker-alpha.js?ver=3.1.3:27 Uncaught ReferenceError: Color is not defined
at wp-color-picker-alpha.js?ver=3.1.3:27
at wp-color-picker-alpha.js?ver=3.1.3:478
(anonymous) @ wp-color-picker-alpha.js?ver=3.1.3:27
(anonymous) @ wp-color-picker-alpha.js?ver=3.1.3:478
accordion.min.js?ver=1.12.1:9 Uncaught TypeError: l.widget is not a function
at accordion.min.js?ver=1.12.1:9
at accordion.min.js?ver=1.12.1:9
at accordion.min.js?ver=1.12.1:9
(anonymous) @ accordion.min.js?ver=1.12.1:9
(anonymous) @ accordion.min.js?ver=1.12.1:9
(anonymous) @ accordion.min.js?ver=1.12.1:9
dialog.min.js?ver=1.12.1:9 Uncaught TypeError: h.widget is not a function
at dialog.min.js?ver=1.12.1:9
at dialog.min.js?ver=1.12.1:9
at dialog.min.js?ver=1.12.1:9
(anonymous) @ dialog.min.js?ver=1.12.1:9
(anonymous) @ dialog.min.js?ver=1.12.1:9
(anonymous) @ dialog.min.js?ver=1.12.1:9
menu.min.js?ver=1.12.1:9 Uncaught TypeError: o.widget is not a function
at menu.min.js?ver=1.12.1:9
at menu.min.js?ver=1.12.1:9
at menu.min.js?ver=1.12.1:9
(anonymous) @ menu.min.js?ver=1.12.1:9
(anonymous) @ menu.min.js?ver=1.12.1:9
(anonymous) @ menu.min.js?ver=1.12.1:9
autocomplete.min.js?ver=1.12.1:9 Uncaught TypeError: u.widget is not a function
at autocomplete.min.js?ver=1.12.1:9
at autocomplete.min.js?ver=1.12.1:9
at autocomplete.min.js?ver=1.12.1:9
(anonymous) @ autocomplete.min.js?ver=1.12.1:9
(anonymous) @ autocomplete.min.js?ver=1.12.1:9
(anonymous) @ autocomplete.min.js?ver=1.12.1:9
tabs.min.js?ver=1.12.1:9 Uncaught TypeError: l.widget is not a function
at tabs.min.js?ver=1.12.1:9
at tabs.min.js?ver=1.12.1:9
at tabs.min.js?ver=1.12.1:9
(anonymous) @ tabs.min.js?ver=1.12.1:9
(anonymous) @ tabs.min.js?ver=1.12.1:9
(anonymous) @ tabs.min.js?ver=1.12.1:9
wpdialog.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2 Uncaught TypeError: e.widget is not a function
at wpdialog.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
at wpdialog.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
(anonymous) @ wpdialog.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
(anonymous) @ wpdialog.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
progressbar.min.js?ver=1.12.1:11 Uncaught TypeError: t.widget is not a function
at progressbar.min.js?ver=1.12.1:11
at progressbar.min.js?ver=1.12.1:11
at progressbar.min.js?ver=1.12.1:11
(anonymous) @ progressbar.min.js?ver=1.12.1:11
(anonymous) @ progressbar.min.js?ver=1.12.1:11
(anonymous) @ progressbar.min.js?ver=1.12.1:11
hooks.min.js?ver=54e7683a4c0aafac0448bb95dc8d53ba:2 The hook name can only contain numbers, letters, dashes, periods and underscores.
o @ hooks.min.js?ver=54e7683a4c0aafac0448bb95dc8d53ba:2
(anonymous) @ hooks.min.js?ver=54e7683a4c0aafac0448bb95dc8d53ba:2
add_filter @ acf-input.min.js?ver=5.6.9:1
(anonymous) @ VM207 customize.php:10080
(anonymous) @ VM207 customize.php:10179
VM19 customize.php:1 [DOM] Found 2 elements with non-unique id #widget-etheme-socials-__i__-vk: (More info: https://goo.gl/9p2vKq) ​ ​
DevTools failed to load SourceMap: Could not load content for https://www.mixware.net/wp-content/plugins/et-core-plugin/packages/kirki/controls/css/styles.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
jquery.min.js?ver=3.5.1:2 jQuery.Deferred exception: this.$sectionContent.sortable is not a function TypeError: this.$sectionContent.sortable is not a function
at i._setupSortable (https://www.mixware.net/wp-admin/js/customize-widgets.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:22039)
at i.ready (https://www.mixware.net/wp-admin/js/customize-widgets.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:20589)
at https://www.mixware.net/wp-admin/js/customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:40531
at c (https://www.mixware.net/wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:28294)
at Object.add [as done] (https://www.mixware.net/wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:28572)
at initialize (https://www.mixware.net/wp-admin/js/customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:40473)
at i.h.Class (https://www.mixware.net/wp-includes/js/customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:577)
at i [as constructor] (https://www.mixware.net/wp-includes/js/customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:193)
at new i (https://www.mixware.net/wp-includes/js/customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:193)
at Object. (https://www.mixware.net/wp-admin/js/customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:92358) undefined
S.Deferred.exceptionHook @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
(anonymous) @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
fire @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
ready @ jquery.min.js?ver=3.5.1:2
B @ jquery.min.js?ver=3.5.1:2
DevTools failed to load SourceMap: Could not load content for https://www.mixware.net/wp-content/plugins/et-core-plugin/packages/kirki/modules/custom-sections/sections.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
jquery.min.js?ver=3.5.1:2 jQuery.Deferred exception: Cannot read property ‘addEventListener’ of null TypeError: Cannot read property ‘addEventListener’ of null
at Object.import_export (https://www.mixware.net/wp-content/plugins/et-core-plugin/app/models/customizer/builder/js/builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:7317)
at Object.et_init (https://www.mixware.net/wp-content/plugins/et-core-plugin/app/models/customizer/builder/js/builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2:3584)
at Object.init (https://www.mixware.net/wp-content/plugins/et-core-plugin/app/models/customizer/builder/js/builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:1:179)
at HTMLDocument. (https://www.mixware.net/wp-content/plugins/et-core-plugin/app/models/customizer/builder/js/builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:3:4518)
at e (https://www.mixware.net/wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:30005)
at t (https://www.mixware.net/wp-includes/js/jquery/jquery.min.js?ver=3.5.1:2:30307) undefined
S.Deferred.exceptionHook @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
(anonymous) @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
fire @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
ready @ jquery.min.js?ver=3.5.1:2
B @ jquery.min.js?ver=3.5.1:2
jquery.min.js?ver=3.5.1:2 Uncaught TypeError: this.$sectionContent.sortable is not a function
at i._setupSortable (customize-widgets.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at i.ready (customize-widgets.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
at c (jquery.min.js?ver=3.5.1:2)
at Object.add [as done] (jquery.min.js?ver=3.5.1:2)
at initialize (customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at i.h.Class (customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at i [as constructor] (customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at new i (customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at Object. (customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
_setupSortable @ customize-widgets.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
ready @ customize-widgets.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
(anonymous) @ customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
c @ jquery.min.js?ver=3.5.1:2
add @ jquery.min.js?ver=3.5.1:2
initialize @ customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
h.Class @ customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
i @ customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
i @ customize-base.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
(anonymous) @ customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
each @ jquery.min.js?ver=3.5.1:2
(anonymous) @ customize-controls.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
e @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
S.readyException @ jquery.min.js?ver=3.5.1:2
(anonymous) @ jquery.min.js?ver=3.5.1:2
e @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
(anonymous) @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
fire @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
(anonymous) @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
fire @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
ready @ jquery.min.js?ver=3.5.1:2
B @ jquery.min.js?ver=3.5.1:2
jquery.min.js?ver=3.5.1:2 Uncaught TypeError: Cannot read property ‘addEventListener’ of null
at Object.import_export (builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at Object.et_init (builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2)
at Object.init (builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:1)
at HTMLDocument. (builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:3)
at e (jquery.min.js?ver=3.5.1:2)
at t (jquery.min.js?ver=3.5.1:2)
import_export @ builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
et_init @ builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:2
init @ builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:1
(anonymous) @ builder.min.js?ver=e9847f13dcdc355a559b51e6c299cdcc:3
e @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
S.readyException @ jquery.min.js?ver=3.5.1:2
(anonymous) @ jquery.min.js?ver=3.5.1:2
e @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
(anonymous) @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
fire @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
t @ jquery.min.js?ver=3.5.1:2
setTimeout (async)
(anonymous) @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
fire @ jquery.min.js?ver=3.5.1:2
c @ jquery.min.js?ver=3.5.1:2
fireWith @ jquery.min.js?ver=3.5.1:2
ready @ jquery.min.js?ver=3.5.1:2
B @ jquery.min.js?ver=3.5.1:2
DevTools failed to load SourceMap: Could not load content for https://www.mixware.net/wp-content/plugins/et-core-plugin/packages/kirki/modules/tooltips/tooltip.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE
DevTools failed to load SourceMap: Could not load content for https://www.mixware.net/wp-content/plugins/et-core-plugin/packages/kirki/assets/vendor/selectWoo/kirki.css.map: HTTP error: status code 404, net::ERR_HTTP_RESPONSE_CODE_FAILURE