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 ('a78d254da6ee4f1c69dfef6c0a1d069e','0','18.216.123.120','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1713522410','markread.php?boardid=85&sid=bd1cf916718cd50c7a7e9ea4c35a5738','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: 19.04.2024 @ 12:26
Script: /markread.php?boardid=85&sid=bd1cf916718cd50c7a7e9ea4c35a5738
Referer: