In case you stumble across an error like: “Table ‘table_name’ is marked as crashed and should be repaired”, you’ll need to do the following:
In cPanel, you can repair a database table by:
cPanel -> Databases -> MySQL Databases
You may need to go to Page 2, so under Current Databases  or >> to go to the next page.
Under Modify Databases click [Check DB] or [Repair DB].
Open the database in phpMyAdmin. To do that, go to your Plesk control panel, click “Websites and Domains,” click “Databases,” and then click the database in question. From
there, click “Webadmin” under “Tools.” You will most likely be presented with phpMyAdmin
Next, click “Databases” in the upper right, click the database name, then scroll all the way down and click “Check All” to check all the tables. From the drop down menu, select “Check Tables” and your tables will immediately be checked. After that, you can decide which tables to select and choose “repair” from the drop down menu.