currently we are experiencing the 'Error Reading from Database' issue with our Moodle site. We've established this is not due to a recent Upgrade and are unsure of the troubleshooting steps to take for this fix.
Can anyone advise of the troubleshooting steps we can take to resolve this issue?
This error does not tell us exactly what is going on, but you can try this:
Open the file: /lib/dml/mysqli_native_moodle_database.php and change @@default_storage_engine to @@storage_engine.
Hope that helps!