I have upgraded moodle 3.10 to 3.11 with standard procedure every think working fine except course reports like activity, course completion, logs, live logs. When I am trying to access this showing error
Exception - Call to a member function out() on null
Error code: generalexceptionmessage
- line 48 of \lib\classes\report_helper.php: Error thrown
- line 98 of \report\outline\index.php: call to core\report_helper::print_report_selector()
I had also tried different solutions from forum like purge cache, empty cache and local cache from moodle data but not working.
Thanks in advance.