Problem running a new website

I did a fresh installation on my local server and the shop is working perfectly. I uploaded that on the server with the name testJune2022. Then I’ve taken the backup of our running website on local

and uploaded all its files to that testJune2022. I’ve also changed .htaccess and Now when I’m trying to run the new website it’s not running. I don’t know the reason behind it. Can anyone help me with that? I’ll be really greatful to you.

It’s not running… The statement is meaningless. Nobody can help without an error message.