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 ('ce51fa2b13b173397830197a0a9741c8','0','18.221.187.207','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715479666','misc.php?action=imprint&sid=8522e1c582d389176baa1a45a67e4d02','0','0','')
mysql error: Duplicate entry 'ce51fa2b13b173397830197a0a9741c8' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 04:07
Script: /misc.php?action=imprint&sid=8522e1c582d389176baa1a45a67e4d02
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=8522e1c582d389176baa1a45a67e4d02