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 ('771da5c4969e9abe2e1ef42c7029451f','0','54.226.64.30','CCBot/2.0 (https://commoncrawl.org/faq/)','1547666303','thread.php?threadid=5485','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 @ 20:18
Script: /thread.php?threadid=5485
Referer: