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 ('c65f51b83151ece8167c8253256d8415','0','3.142.173.166','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715903416','board.php?boardid=257&sid=ea05e86896d87826f630ec38f7332547','0','0','')
mysql error: Duplicate entry 'c65f51b83151ece8167c8253256d8415' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 17.05.2024 @ 01:50
Script: /board.php?boardid=257&sid=ea05e86896d87826f630ec38f7332547
Referer: http://wehrbauten.de/board.php?boardid=257&sid=ea05e86896d87826f630ec38f7332547