When we try to backup coures in 2.2 so we can inport them into 2.3 we get the following Coding Error and stack trace. Can anyone help me out here?
Coding error detected, it must be fixed by a programmer: optional_param() requires $parname, $default and $type to be specified (parameter: id)
- line 568 of /lib/moodlelib.php: coding_exception thrown
- line 12 of /backup/backup.php: call to optional_param()