SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6 pl 2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('5f0178994d258db5ac7ad8b5a775e7a3','0','18.227.190.93','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713584906','calendar.php?action=viewbirthdays&day=2018-7-7&sid=430ce52d579fe75f62411a8b42024954','0','0','')
mysql error: Duplicate entry '5f0178994d258db5ac7ad8b5a775e7a3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 20.04.2024 @ 05:48
Script: /calendar.php?action=viewbirthdays&day=2018-7-7&sid=430ce52d579fe75f62411a8b42024954
Referer: http://your-wbb.de/calendar.php?action=viewbirthdays&day=2018-7-7&sid=430ce52d579fe75f62411a8b42024954