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 ('b945815654c8960aa5efbd63249e1791','0','18.188.113.80','Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.c','1716269767','usercp.php?action=addsubscription&boardid=543&sid=d4779187dd07198e08f274f624b6f1e9','0','0','')
mysql error: Duplicate entry 'b945815654c8960aa5efbd63249e1791' for key 'PRIMARY'
mysql error number: 1062
mysql version: 5.6.13
php version: 7.4.33
Date: 21.05.2024 @ 07:36
Script: /usercp.php?action=addsubscription&boardid=543&sid=d4779187dd07198e08f274f624b6f1e9
Referer: