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`='2c7fb5b7f7ac3d7af0892544e0c13632',`time`=1711640939,`ip`=X'22cc3410',`location`='/showthread.php?tid=291',`useragent`='claudebot',`location1`=8,`location2`=291,`nopermission`=0