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 ('19f7126b7ab9d3655e444904946f9f0f','0','3.144.39.93','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715757981','jgs_portal.php?sid=51d4c8fc6e33c6fdd9133f8561095124','0','0','')
mysql error: Duplicate entry '19f7126b7ab9d3655e444904946f9f0f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 15.05.2024 @ 09:26
Script: /jgs_portal.php?sid=51d4c8fc6e33c6fdd9133f8561095124
Referer: http://wehrbauten.de/jgs_portal.php?sid=51d4c8fc6e33c6fdd9133f8561095124