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`='4bcc851f452461d3df3e15f58074fcd6',`time`=1711711793,`ip`=X'03ee0c00',`location`='/showthread.php?tid=220',`useragent`='claudebot',`location1`=9,`location2`=220,`nopermission`=0