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 ('52ca0c822e3a98b0dd4907c03d88a4d4','0','3.90.33.254','claudebot','1711618689','register.php?sid=55b2b75e2c10e75368c071a8cd0fafe9','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: 28.03.2024 @ 10:38
Script: /register.php?sid=55b2b75e2c10e75368c071a8cd0fafe9
Referer: