SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.5): Invalid SQL: SELECT * FROM bb1_posts WHERE postid = '1034'
mysql error: Table './berndkrings_mlclub/bb1_posts' is marked as crashed and last (automatic?) repair failed
mysql error number: 144
mysql version: 5.5.38-0ubuntu0.12.04.1
php version: 5.3.10-1ubuntu3.13
Date: 04.07.2015 @ 07:01
Script: /wbb2/thread.php?postid=1034
Referer: