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 ('ae61e79d8e57369d60230f005381a89f','0','3.147.13.229','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715844457','thread.php?goto=lastpost&threadid=1380&sid=e8f1b474e5ec736d6c146a3d1f7994a5','0','0','')
mysql error: Duplicate entry 'ae61e79d8e57369d60230f005381a89f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 09:27
Script: /thread.php?goto=lastpost&threadid=1380&sid=e8f1b474e5ec736d6c146a3d1f7994a5
Referer: http://wehrbauten.de/thread.php?goto=lastpost&threadid=1380&sid=e8f1b474e5ec736d6c146a3d1f7994a5