I just migrated to 3.4.2+ and I am getting this error on my courses which use the Collapsed Topics plugin (Top Colls - https://moodle.org/plugins/format_topcoll)
Exception - Call to undefined method format_topcoll::get_last_section_number()
Error code: generalexceptionmessage
- line 1067 of /course/format/topcoll/renderer.php: Error thrown
- line 101 of /course/format/topcoll/format.php: call to format_topcoll_renderer->set_user_preference()
- line 280 of /course/view.php: call to require()
I have tried to uninstall plugin and re-install from the latest version - keep getting this error. Any help / suggestions would be GREATLY appreciated!