Sometimes your MySQL queries or tables may stop working and you may get
an error which says, "..... is marked as crashed and needs to be
repaired". Fortunately you can fix this problem easily on cPanel.
Even if you
are getting other types of errors like "supplied argument is not a
valid" or "table attribute does not exist", you may also try to fix the issue using the same method.
To repair your broken database, login to your cPanel. Under the heading Databases
, click MySQL Databases
.