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 ('64f2bdb21f334350bd3bbba74a7896a1','0','3.141.200.180','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714947062','editpost.php?postid=59760&sid=2758df28fcda27b863c31a9d29a4deb3','0','0','')
mysql error: Duplicate entry '64f2bdb21f334350bd3bbba74a7896a1' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 06.05.2024 @ 00:11
Script: /editpost.php?postid=59760&sid=2758df28fcda27b863c31a9d29a4deb3
Referer: