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 ('a9aa126f64e47f8ac0a385ad7444dd80','0','100.26.135.252','claudebot','1711716352','register.php?sid=030c4779354f155e52e4121678a3f9bd','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 @ 13:45
Script: /register.php?sid=030c4779354f155e52e4121678a3f9bd
Referer: