I do not see a solution to this topic so I don’t know why it is marked Solved. Re-submitting:
My host increased PHP memory limit to 300M but I am still getting the same error.
This is what happens when I try to update the XStore Core plugin:
The update process is starting. This process may take a while on some hosts, so please be patient.
Enabling Maintenance mode…
Updating Plugin XStore Core (1/1)
Downloading update from https://www.8theme.com/themes/api/files/get/et-core-plugin.zip?token=4DhLZ3uZqqsvJc3bLpwpJJxLFtxPBveoOeBbb5iA1693401432…
Unpacking the update…
An error occurred while updating XStore Core: The package could not be installed. PCLZIP_ERR_BAD_FORMAT (-10) : Unable to find End of Central Dir Record signature
Disabling Maintenance mode…
All updates have been completed.