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 ('06405a370bb5e472ca795cbf6dd8314f','0','18.191.223.123','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715185501','jgs_portal.php?sid=d06c808b19b4ef9341319e9ee154d8a0','0','0','')
mysql error: Duplicate entry '06405a370bb5e472ca795cbf6dd8314f' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 08.05.2024 @ 18:25
Script: /jgs_portal.php?sid=d06c808b19b4ef9341319e9ee154d8a0
Referer: http://wehrbauten.de/jgs_portal.php?sid=d06c808b19b4ef9341319e9ee154d8a0