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 ('b5dc7ef493be4c401ffe87657e277771','0','3.138.117.25','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715791927','thread.php?goto=lastpost&threadid=1405&sid=d55ed15401689057b494406b7662f748','0','0','')
mysql error: Duplicate entry 'b5dc7ef493be4c401ffe87657e277771' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 18:52
Script: /thread.php?goto=lastpost&threadid=1405&sid=d55ed15401689057b494406b7662f748
Referer: