i try to upgrade from 4.3 to 4.4 but the upgrade stop bacause the version of db is older.
after that the moodle 4.3 doesnot appear my courses ND SHOWS A MESSAGE "invalidparameter" AND THE COURSE INDEX DOES NOT APPEARS
COULD YOU HELP ME?
Enable debugging to show more details with the error.
If you can, please change the language to English for your Moodle user so we can understand the messages in your screenshot.
Did you Developer_tools#Purge_all_caches?