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 ('606b4d9e45ba1ab10fcb5a53fdaff2fe','0','18.191.84.32','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714785285','board.php?boardid=328&page=1&daysprune=1000&sortfield=views&sortorder=ASC&sid=03577e448afff98e5a38aba2ca9df2d3','0','0','')
mysql error: Duplicate entry '606b4d9e45ba1ab10fcb5a53fdaff2fe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 03:14
Script: /board.php?boardid=328&page=1&daysprune=1000&sortfield=views&sortorder=ASC&sid=03577e448afff98e5a38aba2ca9df2d3
Referer: