If you ran into trouble and noticed that your site is inaccessible, you may want to deactivate the WordPress plugin using FTP. Since you can’t log in to your admin panel, you may use the following instructions:
Step 1: Log in to your FTP server using your FTP client
Step 2: Move to wp-content/plugins
Step 3: Find one of the folders:
Rename the folder(s) by adding .old to the folder name:
After saving changes, please try to access your admin panel again. You should now be able to log in to your site normally.