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 ('4d523696946a64fc457853171ff952ee','0','3.90.187.11','claudebot','1711637894','register.php?sid=6dcbdc51cd2ccaa9b5fac7b61f20a07f','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 @ 15:58
Script: /register.php?sid=6dcbdc51cd2ccaa9b5fac7b61f20a07f
Referer: