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 ('49a934961c6f02f6a46d57ef07a34c1c','0','3.149.234.141','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714347504','addreply.php?postid=2962&sid=5533ba6cd045e8947f9d6467172f30ed','0','0','')
mysql error: Duplicate entry '49a934961c6f02f6a46d57ef07a34c1c' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 29.04.2024 @ 01:38
Script: /addreply.php?postid=2962&sid=5533ba6cd045e8947f9d6467172f30ed
Referer: http://wehrbauten.de/addreply.php?postid=2962&sid=5533ba6cd045e8947f9d6467172f30ed