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 ('ca8a438d8ad7dee2cc1b98ffcc1e7643','0','3.137.170.183','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714272035','register.php?sid=5ca06c3b6ff3fc9e72b31f1b8471e193','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: 28.04.2024 @ 04:40
Script: /register.php?sid=5ca06c3b6ff3fc9e72b31f1b8471e193
Referer: