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 ('1c3d1524c149d0a7346cbdc811e3ff1d','0','3.14.142.62','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715591439','board.php?boardid=430&sid=eea44d9c8f5b7369add6e7113a6398ea','0','0','')
mysql error: Duplicate entry '1c3d1524c149d0a7346cbdc811e3ff1d' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 13.05.2024 @ 11:10
Script: /board.php?boardid=430&sid=eea44d9c8f5b7369add6e7113a6398ea
Referer: http://wehrbauten.de/board.php?boardid=430&sid=eea44d9c8f5b7369add6e7113a6398ea