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 ('e6a5e05dad3e9dd5fd314506b16011b7','0','3.129.23.30','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714858619','board.php?boardid=88&sid=062a3847c072bd1dc7a78e5f04bf7027','0','0','')
mysql error: Duplicate entry 'e6a5e05dad3e9dd5fd314506b16011b7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 23:36
Script: /board.php?boardid=88&sid=062a3847c072bd1dc7a78e5f04bf7027
Referer: http://wehrbauten.de/board.php?boardid=88&sid=062a3847c072bd1dc7a78e5f04bf7027