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 ('3dd573a5c3f5ff9fecb430639e9dabea','0','18.118.2.15','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713957215','register.php?sid=ddabc97e0e69af287d5a3bfcf21530db','0','0','')
mysql error: The table 'bb1_sessions' is full
mysql error number: 1114
mysql version: 10.0.32-MariaDB-0+deb8u1
php version: 5.6.33-0+deb8u1
Date: 24.04.2024 @ 13:13
Script: /register.php?sid=ddabc97e0e69af287d5a3bfcf21530db
Referer: