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 ('53139c9785605d5c7d77b338242c8095','0','3.16.147.124','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714580582','board.php?boardid=20&sid=123ed42c9f4d5b0ad1b7b0ecf56e44c8','0','0','')
mysql error: Duplicate entry '53139c9785605d5c7d77b338242c8095' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 01.05.2024 @ 18:23
Script: /board.php?boardid=20&sid=123ed42c9f4d5b0ad1b7b0ecf56e44c8
Referer: