Account deleted from PC

Turned my PC on and eM client was no longer there
I reloaded it from the web, but I can’t do anything about the licence - because the system already has my email address.

Is there a recommended fix for this?

If you need your activation key, click the following link Lost Activation Key | eM Client and type in your email address.

You can get the activation key via your ISP webmail if you currently cannot receive email in eM Client.