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 ('90e5b346544baf98898f80a640e7bcb2','0','18.188.254.179','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715537417','index.php?hidecat=134&sid=d791baa6bbcef0cde1f34e4ce36a948a','0','0','')
mysql error: Duplicate entry '90e5b346544baf98898f80a640e7bcb2' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 12.05.2024 @ 20:10
Script: /index.php?hidecat=134&sid=d791baa6bbcef0cde1f34e4ce36a948a
Referer: