Can′t access to Admin

Hello,

We use ithemes security to protect our WordPress & Admin.
We rename the admin as they recommend and all was working very well.

But we did change our hosting. We move our MySQL DB and all our files to the new server. The blog for visitors is ok, but the admin section is lost.

It was in: https://www.MyDomain.com/wplogin but we are getting 404 error.
Also if we visit: https://www.MyDomain.com/wp-admin we get the same 404 error.

How we can get access again to our admin?

Thanks

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