WordPress Cache delete on plugin uninstall

It’s always good to clear your own stuff on uninstallation. I see you’re using set_transient. There also is a delete_transient function (docs). I think that’s the only thing you need to clean things up.

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