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 ('f1f497ad451e9e568ef16f4cddbd36f7','0','3.139.83.7','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715425636','misc.php?action=imprint&sid=9210bfcaf181b270bfd890f864eb816b','0','0','')
mysql error: Duplicate entry 'f1f497ad451e9e568ef16f4cddbd36f7' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 11.05.2024 @ 13:07
Script: /misc.php?action=imprint&sid=9210bfcaf181b270bfd890f864eb816b
Referer: http://wehrbauten.de/misc.php?action=imprint&sid=9210bfcaf181b270bfd890f864eb816b