Can’t edit custom post type

As I told SickHippie in the comment, this was a matter of the naming convention while registering the custom post type in the functions.php file. I used camel-case and the DB didn’t like that. Once it was changed to all lower-case, it worked fine.

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