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 ('5b3bbb0e1dd0b557d1d66d22a78c1c23','0','3.21.231.245','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714801633','thread.php?threadid=4633&goto=lastpost&sid=98a3dd5d2e23dd2239af0815b21086ea','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: 04.05.2024 @ 07:47
Script: /thread.php?threadid=4633&goto=lastpost&sid=98a3dd5d2e23dd2239af0815b21086ea
Referer: