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 ('14a88764b883d5d79921c2bae86139c6','0','18.119.131.72','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714838421','board.php?boardid=403&sid=3f6514c9eddad3b14082c8b702e514c1','0','0','')
mysql error: Duplicate entry '14a88764b883d5d79921c2bae86139c6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 18:00
Script: /board.php?boardid=403&sid=3f6514c9eddad3b14082c8b702e514c1
Referer: http://wehrbauten.de/board.php?boardid=403&sid=3f6514c9eddad3b14082c8b702e514c1