After migration to Dedicated server - problem with Redirect

Hello Ray,
I've searched through this forum and unfortunately could not find an answer to my problem:
After successful migration to Dedicated server the issue with log-in redirect has risen:
When the user is trying to access the restricted page, he/she is re-directed to Login page with ?WASA_accesscheck= in the URL, however, when the user logs in successfully, instead of being redirected to the page the user was trying to access, they are redirected to the page that is hardcoded as "successRedirect" => "my_account.php"
I've cleared cache and cookies on different browsers (Firefox and Chrome)... same issue
Attached is my login.php file

The htaccess file code:

RewriteEngine On
RewriteCond %{SERVER_PORT} 80
RewriteRule ^(.*)$ https://virtualgrandtour.com/$1 [R=301,L]

Before the migration this process worked fine.

Please advise.
Thank you in advance for your time and your assistance.

I'll need FTP access and a url to reproduce this issue in order to debug it. I think the issue is probably on the page they are trying to access and not the login page.

Please see the FTP info and links in the PM

The FTP information provided takes me to an empty directory. I'll need access to the files to look at them.

Please see PM

It looks like the account you are using has expired and that is why it takes you to the my account page.

Hi Ray,
Thank you so much for looking. It was my first thought as well, however, this is one of the Admin accounts and should not be "flagged" for expiration. In addition, before the migration to the dedicated server, this functionality was working well for the same account.

One more thing that has been an issue since migration (which I've already solved):

Since this site is using the SSL certificate, I had to change the absolute path in the Site Settings in DW (from http://...... to https://) in order to connect to the Database... So, something tells me there is some other settings that should be updated for the site in order to fix this issue.

Please look at the PM

We better do a call... When I log in I see the membership status: cancelled. I'll probably need to talk with you to figure out what exactly is going on.

Thank you Ray, I've requested the call.

I emailed you directly to schedule.