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`='3e6c414c872c4b84d3d67690481db520',`time`=1711701760,`ip`=X'3456e367',`location`='/showthread.php?tid=194',`useragent`='claudebot',`location1`=9,`location2`=194,`nopermission`=0