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 ('73886beb4606e2a313d418917bba77d3','0','3.129.19.251','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715014745','board.php?boardid=220&sid=0afb139281feb42519538d645576f58a','0','0','')
mysql error: Duplicate entry '73886beb4606e2a313d418917bba77d3' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 18:59
Script: /board.php?boardid=220&sid=0afb139281feb42519538d645576f58a
Referer: http://wehrbauten.de/board.php?boardid=220&sid=0afb139281feb42519538d645576f58a