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 ('4574d2bf3b9c1ea65218b24a79a00bdd','0','3.15.156.140','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713947748','register.php?sid=0215e9c156384f0f92dfcf04008e2769','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 @ 10:35
Script: /register.php?sid=0215e9c156384f0f92dfcf04008e2769
Referer: