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 ('98a28d7242f433e73d776f10c066e102','0','3.15.176.204','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715679147','jgs_portal_links.php?kat_id=2&sid=203f42ee04411b489b471ac07b85436a','0','0','')
mysql error: Duplicate entry '98a28d7242f433e73d776f10c066e102' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.41-3ubuntu12.3
php version: 4.4.9
Date: 14.05.2024 @ 11:32
Script: /wbb2/jgs_portal_links.php?kat_id=2&sid=203f42ee04411b489b471ac07b85436a
Referer: