MyBB SQL Error

MyBB has experienced an internal SQL error and cannot continue.

SQL Error:
145 - Table './balkania_forum/mybb_sessions' is marked as crashed and should be repaired
Query:
REPLACE INTO mybb_sessions SET `uid`=0,`sid`='f4973a673e129be9195ab6a691ce8860',`time`=1711712910,`ip`=X'2cdf2589',`location`='/ratethread.php?tid=262&rating=4&my_post_key=7b2a3759a59be080f593aba73d34d894',`useragent`='claudebot',`location1`=0,`location2`=0,`nopermission`=0