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 ('d55d69f622d6e01a5b28e3594bd4edf7','0','3.21.43.192','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715564399','profile.php?userid=457&sid=a3f1f7bbb9dbbc1008afe40e20759da8','0','0','')
mysql error: Duplicate entry 'd55d69f622d6e01a5b28e3594bd4edf7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 10.6.16-MariaDB-0ubuntu0.22.04.1
php version: 5.6.40
Date: 13.05.2024 @ 03:39
Script: /profile.php?userid=457&sid=a3f1f7bbb9dbbc1008afe40e20759da8
Referer: