1. Login to phpMyAdmin with your wordpress database username & password.
2. Select your database name from the pull down menu on the top left of the screen. (if you have more than one database associated with database username)
3. Click on the SQL tab and insert the following SQL query, then click “Go”.
SELECT * FROM wp_options WHERE option_name = "active_plugins";
4. Click on the edit icon.
5. Finally, select all the text in the text box as shown below, remove it and click “Go”.