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 ('820df7f30e2a7a1ca6e1cb1e5d31a143','0','18.119.109.119','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715741597','profile.php?userid=608&sid=ed6a13526e92759dcf42d3eddfcd6775','0','0','')
mysql error: Duplicate entry '820df7f30e2a7a1ca6e1cb1e5d31a143' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 04:53
Script: /profile.php?userid=608&sid=ed6a13526e92759dcf42d3eddfcd6775
Referer: