Try: AdminCP -> System -> Support -> checkSomething isn't working correctly -> click on Continue
after second step:
Fatal error: Call to undefined method IPS\Theme\class_core_admin_support::whitespace() in D:\XAMPP\htdocs\applications\core\modules\admin\support\support.php on line 302
Upgrade from IP. 3.4.x to IPS4.0 (updated)
in Technical Problems
Posted · Edited by Mawej
after second step:
Fatal error: Call to undefined method IPS\Theme\class_core_admin_support::whitespace() in D:\XAMPP\htdocs\applications\core\modules\admin\support\support.php on line 302