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 ('6b99eaa70b381325d4927cacbec33069','0','3.91.203.238','claudebot','1711695985','register.php?sid=d81886eb7a3fbd26ad7cbe6d8b7416c0','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 @ 08:06
Script: /register.php?sid=d81886eb7a3fbd26ad7cbe6d8b7416c0
Referer: