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 ('adb745c8d7086e869bdb4946c4ee86a4','0','13.58.247.31','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715053124','board.php?boardid=64&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=ffa7f53b96202e43339f28649a5ae0c3','0','0','')
mysql error: Duplicate entry 'adb745c8d7086e869bdb4946c4ee86a4' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 07.05.2024 @ 05:38
Script: /board.php?boardid=64&page=1&daysprune=1000&sortfield=topic&sortorder=ASC&sid=ffa7f53b96202e43339f28649a5ae0c3
Referer: