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 ('a1cd40e909c0410f9f78c4b7967563a6','0','3.133.130.136','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714348023','team.php?sid=643a5ccfb1a06135e55ba0c31d89741a','0','0','')
mysql error: Duplicate entry 'a1cd40e909c0410f9f78c4b7967563a6' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.7.42-log
php version: 5.6.40
Date: 29.04.2024 @ 01:47
Script: /team.php?sid=643a5ccfb1a06135e55ba0c31d89741a
Referer: