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`='995c17684cb41f11f8a9b263f9058674',`time`=1711625901,`ip`=X'2ccbdb75',`location`='/showthread.php?tid=581&action=lastpost',`useragent`='claudebot',`location1`=7,`location2`=581,`nopermission`=0