MySQL Error Occurred

Error Message:
145: Table './rcf49207_rcfuelsupplies/CubeCart_sessions' is marked as crashed and should be repaired

SQL:
INSERT INTO `CubeCart_sessions` (`sessId`,`timeStart`,`timeLast`,`customer_id`,`ip`,`browser`) VALUES ('f2ee4fde52f710a22bec7fdd0417b86b','1513283968','1513283968',0,'54.196.201.241','CCBot/2.0 (http://commoncrawl.org/faq/)');