Allow a role to edit one specific plugin

To solve this you need to go into the main .php file for the plugin and have changed the required capability using add_menu_page.

I created a custom capability, added it to Contributors, and changed the .php file to allow users with that capability to view the menu.

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