Sometimes while upgrading the MyBB Forum you might came across this error :
Table 'mybb_datacache' is marked as crashed and should be repaired Query: SELECT title,cache FROM mybb_datacache
And if you have tried restoring the database from your backup.sql file but still getting the same error then don’t panic because this can simply be resolved from phpMyAdmin,by running the following query:
REPAIR TABLE mybb_datacache;
