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 ('a6d2c5c6cae71c2bc4b10a2f4ba05b19','0','54.221.43.155','claudebot','1711653943','register.php?sid=ecee61dd7c4a880537b15ec3b8f288ff','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 @ 20:25
Script: /register.php?sid=ecee61dd7c4a880537b15ec3b8f288ff
Referer: