Incorrect Theme and Upload URLs After Migration

Something went seriously wrong here. Is there a chance you can repeat the process on behalf of your client? Try to use Duplicator plugin it really helps with migrations.

Or do a manual mysql dump on old hosting and import the database yourself.

This definitely went wrong during the database migration.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)