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 ('4e8ba227cfaa0b70e102dbef804301ec','0','3.14.130.24','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714699839','calendar.php?sid=8b76bc06fc5f5b70d39ca8283f2d65df','0','0','')
mysql error: Duplicate entry '4e8ba227cfaa0b70e102dbef804301ec' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 03.05.2024 @ 03:30
Script: /calendar.php?sid=8b76bc06fc5f5b70d39ca8283f2d65df
Referer: