[FIX] Drupal (7) - "Fatal error: Class entry requested for an object without PHP class" errors.inc on line 59

Drupal 7 (7.54) Error

 this is a workaroud.

 "Fatal error: Class entry requested for an object without PHP class" errors.inc on line 59

How to fix:

edit /includes/errors.inc
    replace
        $caller = _drupal_get_last_caller(debug_backtrace());
    with
        $debugbtrace = debug_backtrace();
        $caller = _drupal_get_last_caller($debugbtrace);