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 ('29a6d52f1fe3321c4b69c5dfbc1d96e3','0','54.205.116.187','claudebot','1711672091','register.php?sid=3fdabddce14d0fa2e0180ec9c8fcee35','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 @ 01:28
Script: /register.php?sid=3fdabddce14d0fa2e0180ec9c8fcee35
Referer: