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 ('5f153794f4d02c7e5e67c2c49696f61c','0','18.119.125.7','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714997593','board.php?boardid=191&sid=513dd3f0e55b46a5fdd387bc14b69079','0','0','')
mysql error: Duplicate entry '5f153794f4d02c7e5e67c2c49696f61c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 06.05.2024 @ 14:13
Script: /board.php?boardid=191&sid=513dd3f0e55b46a5fdd387bc14b69079
Referer: http://wehrbauten.de/board.php?boardid=191&sid=513dd3f0e55b46a5fdd387bc14b69079