Disabling all WordPress plugins
It is possible for a WordPress website to stop working correctly after a new plugin is installed, or an existing plugin is updated. If the WordPress Dashboard remains active, you can temporarily disable or remove the problematic plugin; however, some plugins also cause the WordPress Dashboard to stop working. In such cases, you can easily disable all plugins on your WordPress website via the hosting Control Panel's WordPress section by following these steps:
This should allow you to log in your WordPress Dashboard, and resolve the problem with the misbehaving plugin. You should be able to re-activate your plugins via the WordPress Dashboard.