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 ('d312d75592df59a0b946555fe31f281b','0','3.139.79.59','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714954110','thread.php?goto=lastpost&threadid=2482&sid=ce347d86130dc21b28715212aa33703f','0','0','')
mysql error: Duplicate entry 'd312d75592df59a0b946555fe31f281b' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 02:08
Script: /thread.php?goto=lastpost&threadid=2482&sid=ce347d86130dc21b28715212aa33703f
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=2482&sid=ce347d86130dc21b28715212aa33703f