WordPress Customizer Hides my Sections / Controls inside of is_admin()

My guess would be that is_admin() is conditional check specific to wp-admin and because the customizer doesn’t actual have capability of displaying in wp-admin it would hide the controls.

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