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 ('1f4c4160d021b99be80b4cf3b59b3fbe','0','52.14.44.39','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715866017','thread.php?threadid=845&threadview=1&hilight=&hilightuser=0&sid=1e3e2845ee19c62d66e4c6fb4ef5568a','0','0','')
mysql error: Duplicate entry '1f4c4160d021b99be80b4cf3b59b3fbe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 16.05.2024 @ 15:26
Script: /thread.php?threadid=845&threadview=1&hilight=&hilightuser=0&sid=1e3e2845ee19c62d66e4c6fb4ef5568a
Referer: http://wehrbauten.de/thread.php?threadid=845&threadview=1&hilight=&hilightuser=0&sid=1e3e2845ee19c62d66e4c6fb4ef5568a