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 ('6f61a00083d788bc057b66a27c8e8747','0','18.222.117.109','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714449380','board.php?boardid=115&sid=7810ecc73c2a50cb3a30675c3bc952f9','0','0','')
mysql error: Duplicate entry '6f61a00083d788bc057b66a27c8e8747' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 30.04.2024 @ 05:56
Script: /board.php?boardid=115&sid=7810ecc73c2a50cb3a30675c3bc952f9
Referer: http://wehrbauten.de/board.php?boardid=115&sid=7810ecc73c2a50cb3a30675c3bc952f9