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 ('ffe09b15ecf25d4c4cdb6ebfd9d93fa6','0','3.17.155.11','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1741954105','ct_mail.php?Page=342986511','0','0','')
mysql error: Duplicate entry 'ffe09b15ecf25d4c4cdb6ebfd9d93fa6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.33-0ubuntu0.16.04.1
php version: 5.6.40
Date: 14.03.2025 @ 13:08
Script: /ct_mail.php?Page=342986511
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