SELECT pt_user AS user,pt_reason AS reason,pt_expiry AS expiry,pt_create_perm AS permission FROM [mediawiki].[PREFIX_protected_titles] WHERE pt_namespace = '2' AND pt_title = 'Admin'
Query alias 'user' needs to be escaped using brackets.
Working Fix:
includes/title.php line ~2560
array( '[user]' => 'pt_user', 'reason' => 'pt_reason', 'expiry' => 'pt_expiry', 'permission' => 'pt_create_perm' ),