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 ('a73a622b5d39831af3356cdc6b36bbee','0','3.145.178.157','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714954641','board.php?boardid=161&sid=a3c40fcd7e07e37c4e55c9fb8176310f','0','0','')
mysql error: Duplicate entry 'a73a622b5d39831af3356cdc6b36bbee' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 02:17
Script: /board.php?boardid=161&sid=a3c40fcd7e07e37c4e55c9fb8176310f
Referer: http://wehrbauten.de/board.php?boardid=161&sid=a3c40fcd7e07e37c4e55c9fb8176310f