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 ('b87095b8c3ac710ba03f864ea806e69a','0','3.144.161.92','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715730225','board.php?boardid=245&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=ec3d1b0ff4f3cf2f8725c2a0072ce3c9','0','0','')
mysql error: Duplicate entry 'b87095b8c3ac710ba03f864ea806e69a' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 01:43
Script: /board.php?boardid=245&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=ec3d1b0ff4f3cf2f8725c2a0072ce3c9
Referer: