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 ('a1a3267e8a20463a4cfd15f54c89a25a','0','3.235.76.155','claudebot','1711699030','register.php?sid=4c4e7b581570d3e819472d41a7ba85c9','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: 29.03.2024 @ 08:57
Script: /register.php?sid=4c4e7b581570d3e819472d41a7ba85c9
Referer: