If you want to remove a broken plugin, the advice in this article can help:
Deactivating a broken plugin
If a plugin installation has been corrupted, the first thing to do is to disable the broken plugin.
If your WordPress admin area is still working, you can deactivate the plugin from there. If that’s an option, deactivating the plugin from there is the easiest option.
If your WordPress admin area is now broken, you will have to deactivate the broken plugin by hand. You can do so as follows:
Login to an FTP client of your choice or our web based file manager (found in the client area and control panel).
Navigate to your WordPress plugins folder. This is typically htdocs/wp-content/plugins for your first domain, and example.com/htdocs/wp-content/plugins for addon domains and subdomains.
Find the folder of the broken plugin (it should resemble the name of the plugin).
Right click the folder and select “Delete”.
After this, your WordPress website and admin area should be accessible again.
Since you’re uploading a backup however, if you still have the original files, I’d suggest deleting everything currently uploaded to this hosting and reuploading them through Filezilla.
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