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 ('1c47584f789b3acee68561cc5d6880ae','0','3.140.198.43','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714788680','newthread.php?boardid=135&sid=9641b0882da566fbec7420e854cb9bb1','0','0','')
mysql error: Duplicate entry '1c47584f789b3acee68561cc5d6880ae' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 04:11
Script: /newthread.php?boardid=135&sid=9641b0882da566fbec7420e854cb9bb1
Referer: http://wehrbauten.de/newthread.php?boardid=135&sid=9641b0882da566fbec7420e854cb9bb1