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 ('411718ac4b94cf175800e19de73e1fbb','0','3.142.197.212','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715971170','board.php?boardid=546&sid=7e2c683bcedb790f5baf5af3e1beac34','0','0','')
mysql error: Duplicate entry '411718ac4b94cf175800e19de73e1fbb' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 17.05.2024 @ 20:39
Script: /board.php?boardid=546&sid=7e2c683bcedb790f5baf5af3e1beac34
Referer: http://wehrbauten.de/board.php?boardid=546&sid=7e2c683bcedb790f5baf5af3e1beac34