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 ('511d25e7ad2d5ce1380ef8385120d6b1','0','100.26.140.179','claudebot','1711678973','register.php?sid=03f28aa8c92aa2efd4bc75c5c563bcf8','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 @ 03:22
Script: /register.php?sid=03f28aa8c92aa2efd4bc75c5c563bcf8
Referer: