I have a free license, used on only one computer, I’m using eM Client since several years. Today I’ve got the error message, that eM Client doesn’t find the valid license. Ordering a new license failed, because my email adress is already activated. Then I reordered the Activation Key by email, but activation doesn’t work. License info says “no license” (“Keine Lizenz” in German), no reaction after copying the key and setting “ok”.
It seems to be fixed! Started eM Client again, no more error, and the License Information is correct. Thanx, whoever did the right thing.