MySQL: table is marked as crashed
Solution 1:
To check the tables:
CHECK TABLE mytable1
To repair the table:
REPAIR TABLE mytable1
Solution 2:
Here is specifically what always fixes the table for me:
myisamchk -o /var/lib/mysql/YourDB/yourcrashedtable.MYI
Source: http://realtechtalk.com/MySQL_table_is_marked_as_crashed_solultion-1924-articles