Forbidden

Hello

I try to look at the reports as I want to investigate at why I don’t receive the emails but I get this message :You don’t have permission to access /wp-content/plugins/alo-easymail/pages/alo-easymail-admin-report.php on this server.
What should I do?

Thanks a lot in advance for your help !

https://ww.wp.xz.cn/plugins/alo-easymail/