WordPress: "You do not have sufficient permissions to access this page"

To fix this issue, simply add or edit values in wp_usermeta table.


If you are in CPanel:

• Login to your CPanel -> Databases -> then click phpMyAdmin 

•  Select your website database in the left drop down box. (see sample below)

• Next is click on the wp_usermeta table 

• Click on the insert tab or edit the information if already exist, make sure you have edit only those have same user_id with your login creds.

• unmeta_id - Leave it blank (it will be auto-generated). 
• user_id - This is the user id of your account. 
• meta_key - insert this value wp_capabilities 
• meta_value - insert this value a:1:{s:13:"administrator";s:1:"1";}

      
                NOTE: Please be careful in using curly quotes. 

           a:1:{s:13:"administrator";s:1:"1";}is different from a:1:{s:13:”administrator”;s:1:”1″;}