WP Admin missing icons, numerous JavaScript errors, but only when SCRIPT_DEBUG is false

Do you load own javascripts into the admin? If i recall correctly, if SCRIPT_DEBUG is set to true, the javascripts are not concenated, but loaded seperately. So if a custom javascript doesn’t play well being concenated, this can lead to the whole concenated javascript being corrupt and not being run correctly.

Try removing the added javascripts one by one and check if that changes anything.

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