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 ('2e87fa37a7737b5ba9b69ba0d4b5c870','0','3.22.61.246','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)','1713584971','board.php?boardid=89&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=4cc972ac4cf129480e5a7e2bae64fc16','0','0','')
mysql error: Duplicate entry '2e87fa37a7737b5ba9b69ba0d4b5c870' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.44
php version: 5.2.17
Date: 20.04.2024 @ 05:49
Script: /board.php?boardid=89&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=4cc972ac4cf129480e5a7e2bae64fc16
Referer: http://your-wbb.de/board.php?boardid=89&page=1&daysprune=1000&sortfield=starter&sortorder=ASC&sid=4cc972ac4cf129480e5a7e2bae64fc16