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 ('f778a9dff88a4099f7ca42ab736194fc','0','3.145.64.126','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715825103','thread.php?goto=lastpost&threadid=7882&sid=5394bd5845065089dd03e33682138357','0','0','')
mysql error: Duplicate entry 'f778a9dff88a4099f7ca42ab736194fc' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 16.05.2024 @ 04:05
Script: /thread.php?goto=lastpost&threadid=7882&sid=5394bd5845065089dd03e33682138357
Referer: