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 ('11b009b735dd0d2fa47d88a602300b87','0','3.145.42.94','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715106548','jgs_portal_links.php?kat_id=3&sid=b80c474611e2d665256632e125f80a60','0','0','')
mysql error: Duplicate entry '11b009b735dd0d2fa47d88a602300b87' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.1.41-3ubuntu12.3
php version: 4.4.9
Date: 07.05.2024 @ 20:29
Script: /wbb2/jgs_portal_links.php?kat_id=3&sid=b80c474611e2d665256632e125f80a60
Referer: