SQL-DATABASE ERROR

Database error in WoltLab Burning Board (2.3.6.pl2): Invalid SQL: INSERT INTO bb1_sessions (sessionhash,userid,ipaddress,useragent,lastactivity,request_uri,styleid,langid,authentificationcode) VALUES ('8dea4e79165bc6d38c60fa68d0ed2519','0','3.145.131.238','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715466211','jgs_portal.php?sid=2ba126e006e16b27fa661d5aded1d09b','0','0','')
mysql error: Duplicate entry '8dea4e79165bc6d38c60fa68d0ed2519' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.41
php version: 5.3.29
Date: 12.05.2024 @ 00:23
Script: /wbb2/jgs_portal.php?sid=2ba126e006e16b27fa661d5aded1d09b
Referer: