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 ('a61feb6c7e9ccc2b0ec70102607623fe','0','3.149.233.72','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1715208404','usercp.php?action=addsubscription&threadid=1052&sid=f9e2e39556774d16e70e311ff754f58f','0','0','')
mysql error: Duplicate entry 'a61feb6c7e9ccc2b0ec70102607623fe' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 09.05.2024 @ 00:46
Script: /usercp.php?action=addsubscription&threadid=1052&sid=f9e2e39556774d16e70e311ff754f58f
Referer: