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 ('8b958ae12690d318fbeb6dedc7a0c90f','0','18.188.40.207','claudebot','1713241504','register.php?sid=33bd81f1fdbfa1d3546aeedfa1865ff3','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: 16.04.2024 @ 06:25
Script: /register.php?sid=33bd81f1fdbfa1d3546aeedfa1865ff3
Referer: