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 ('dca301f8f4dd6d6801586ad5596b1bb5','0','3.238.7.202','CCBot/2.0 (https://commoncrawl.org/faq/)','1614216629','thread.php?threadid=435','0','0','')
mysql error: The table 'bb1_sessions' is full
mysql error number: 1114
mysql version: 5.6.44-nmm1-log
php version: 5.6.38-nmm2
Date: 25.02.2021 @ 02:30
Script: /thread.php?threadid=435
Referer: