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 ('bb94ed03be01ec20b5ef56bf70e76f88','0','3.142.99.19','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715573384','search.php?sid=79f05800d2b74f64e4424d6d3ca577f8','0','0','')
mysql error: Duplicate entry 'bb94ed03be01ec20b5ef56bf70e76f88' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 06:09
Script: /search.php?sid=79f05800d2b74f64e4424d6d3ca577f8
Referer: http://wehrbauten.de/search.php?sid=79f05800d2b74f64e4424d6d3ca577f8