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WordPress Error - Sorry, you are not allowed to access this page

Issue:

I migrated one of my site to DigitalOcean and during the process, I changed the table prefix from wp_ to wpdo_. The site loaded fine but when I tried to access wp-admin, I got the following error:

 Sorry, you are not allowed to access this page

Resolution:

I checked the local install to find what could have gone wrong. Since the issue was related to login, I narrowed my thoughts on wpdo_user, wpdo_usermeta and wpdo_options tables.

A quick search in wpdo_usermeta and wpdo_options revealed a few entries pointing to the old prefix

select meta_key from wpdo_usermeta where meta_key like "wp_%";

and

select option_name from wpdo_options where option_name like "wp_%";

I modified the entries and was able to access wp-admin