SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6): Invalid SQL: INSERT INTO bb2_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('002a3980ffa6b758125d99dd52e744f6','0','52.14.154.79','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1746690115','usercp.php?action=buddy&add=1613','0','0','')
mysql error: The table 'bb2_sessions' is full
mysql error number: 1114
mysql version: 4.1.22-standard
php version: 5.3.29-1+hw8
Date: 08.05.2025 @ 03:41
Script: /wbb2/usercp.php?action=buddy&add=1613
Referer: