Sometimes plugins may break websites, and logging in to your Dashboard and disabling the plugin is not a possibility. In situations like these, you may need to disable plugins manually.
- Login to cPanel and click phpMyAdmin.
- Locate your WordPress Database, and inside click wp_options.
- Locate the option named active_plugins (usually ID 33).
- Click the option value, which will toggle the editing section.
- Delete all the content and Save by clicking outside the window.
When reactivating all plugins, do it one by one in order to identify the plugin that caused the errors.