SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('cd835ec6cf2576568ef8163b97876c15','0','54.226.120.183','CCBot/2.0 (http://commoncrawl.org/faq/)','1398374155','index.php','0','0','')
mysql error: The table 'bb1_sessions' is full
mysql error number: 1114
mysql version: 5.5.33-cll-lve
php version: 5.3.27
Date: 24.04.2014 @ 23:15
Script: /forum/index.php
Referer: