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 ('7d2498bd563298189aabec1b7222a4d5','0','54.226.64.30','CCBot/2.0 (https://commoncrawl.org/faq/)','1547663198','thread.php?threadid=5439','0','0','')
mysql error: The table 'bb1_sessions' is full
mysql error number: 1114
mysql version: 5.5.60-MariaDB
php version: 5.4.16
Date: 16.01.2019 @ 19:26
Script: /thread.php?threadid=5439
Referer: