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`='31fb83ace12a72580ddca4208d87dc3c',`time`=1711631215,`ip`=X'0353512a',`location`='/showthread.php?tid=178&pid=1031',`useragent`='claudebot',`location1`=9,`location2`=178,`nopermission`=0