Problem with the activation

When I tried to activate the program one small popup message appeared with the following message: “This PC is disabled. Please contact support as soon as possible.” Yesterday everything worked fine today this. Could someone help me?

Hello,

In this case, you were suspected of using the FREE licence for a commercial purpose which is considered as a violation of our licence policy. We informed you with an email notification but after you refused to answer, we deactivated your licence. If this is a misunderstanding, please contact me at markosky@emclient.com with an explanation.

Thank you for your understanding.
Russel