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 ('3d2dcc2a7f42c781fde935e64eecd9cd','0','3.90.255.22','claudebot','1711697390','register.php?sid=2c0e87ff7e0f7fc6873a5e2ec47bdd00','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 @ 08:29
Script: /register.php?sid=2c0e87ff7e0f7fc6873a5e2ec47bdd00
Referer: