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 ('4210f9433ae93a599749ef938d7b71b5','0','3.138.181.145','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715432436','thread.php?threadid=1193&threadview=0&hilight=&hilightuser=0&sid=69c6a8187aa667e5a7ffba63d922bd2a&page=3','0','0','')
mysql error: Duplicate entry '4210f9433ae93a599749ef938d7b71b5' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 15:00
Script: /thread.php?threadid=1193&threadview=0&hilight=&hilightuser=0&sid=69c6a8187aa667e5a7ffba63d922bd2a&page=3
Referer: http://wehrbauten.de/thread.php?threadid=1193&threadview=0&hilight=&hilightuser=0&sid=69c6a8187aa667e5a7ffba63d922bd2a&page=3