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`='c4bb2fcbc6204da2dc64d931a50d39bf',`time`=1711612533,`ip`=X'0351de98',`location`='/showthread.php?mode=linear&tid=259&pid=1630',`useragent`='claudebot',`location1`=8,`location2`=259,`nopermission`=0