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 ('2111b3f458fe75818459eca5f4c8c7b0','0','3.135.183.89','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715181682','thread.php?goto=lastpost&threadid=980&sid=a83ac49ba49fc344038f7346b4f95859','0','0','')
mysql error: Duplicate entry '2111b3f458fe75818459eca5f4c8c7b0' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 17:21
Script: /thread.php?goto=lastpost&threadid=980&sid=a83ac49ba49fc344038f7346b4f95859
Referer: