Hi Yaniv,
I just tried, but it seems to be working on my end. It is very likely that the Envato validation servers might have had a temporary outage, it happens sometimes, unfortunately I cannot control that. I recommend trying it again a bit later, it will most likely work.
Alternatively, you can update the plugin manually as well, it is safe and easy, and will not take too much time: Manual updates guide
Best,Ernest Marcinko
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