MySQL Error Occurred

Error Message:
145: Table './simpleshop/CubeCart_sessions' is marked as crashed and should be repaired

SQL:
INSERT INTO CubeCart_sessions (`sessId`,`timeStart`,`timeLast`,`customer_id`,`ip`,`browser`) VALUES ('509e4f526c17ffece4b08649fa196f98','1417021473','1417021473',0,'54.82.209.152','CCBot/2.0 (http://commoncrawl.org/faq/)');