Trouble upgrading from 3.4.3 to 3.6

[texnixe]

Newbie struggling with public hosting

ctype_digit() is a PHP function: https://www.php.net/manual/de/function.ctype-digit.php It requires the PHP ctype extension. Maybe it’s not enabled , although that is really pretty standard, I’d say. Where are you hosting now? Maybe you can enable it through your providers control panel.

Make sure the ctype extension is enabled, if in doubt, contact your hosting provider.