Free version emClient - License violatioon all of a sudden

I have been using emClient for years. It’s great. I am only using the Free license version for personal. Not using commercially at all. Todayuu out of the blue, it wants me to activate my license again. I enter the key which I know is valid, yet now comes up that it has violated the licensing rules. It was working fine yesterday. What is wrong? Thanks

Hello Collin,

I’m sorry to hear that, we can take a look at your issue.
If you’re receiving this message, your license may have been deactivated due to the violation of our license policy.
If you’d like to hear more about our policy or raise any objections, please contact our sales department on:Sales@emclient.com
You can also find more information here http://www.emclient.com/faq-licenses

Kind regards