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 ('b9f8d45508815d681fab1fca992799fe','0','18.191.88.249','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1714845700','login.php?sid=4449161ac6ba6d7fe7b5a56953b9377f','0','0','')
mysql error: Duplicate entry 'b9f8d45508815d681fab1fca992799fe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 04.05.2024 @ 20:01
Script: /login.php?sid=4449161ac6ba6d7fe7b5a56953b9377f
Referer: