Adding Email Accounts Issue

[Imauny]

What Happened?

When I try to add my Gmail or Outlook account using the default IMAP settings, I get the error shown in the attachment. I have a working 5GHz internet connection. Also, on Elementary OS 7, I used to be able to use the GNOME Control Center workaround, but now when I try to run "gnome-control-center" from the terminal, I get the following message: "Running gnome-control-center is only supported under GNOME and Unity, exiting." Please look into this issue and try to find a solution. Thank you.

Steps to Reproduce

1. I went to "Mail" app and tried adding an email account.

Expected Behavior

I get an error message.

OS Version

8.x (Circe)

Session Type

Classic Session (X11, This is the default)

Software Version

Latest release (I have run all updates)

Log Output

No response

Hardware Info

Dual-Core Intel® Core(TM) i3-7100U CPU @ 2.40GHz
Intel® HD Graphics 620
4 GB memory