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 ('0fa0455971bd259f9597c9aa01b92e30','0','3.80.38.5','CCBot/2.0 (https://commoncrawl.org/faq/)','1550444183','scast.php?mode=events','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: 17.02.2019 @ 23:56
Script: /scast.php?mode=events
Referer: