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`='203bd6dfee964456fea62f6ad6a6cb19',`time`=1711724552,`ip`=X'03e7038c',`location`='/showthread.php?tid=295&pid=1813',`useragent`='claudebot',`location1`=8,`location2`=295,`nopermission`=0