Activation key no longer working [Solved]

[Xeralas]

My product key, which I purchased July 2015 and have been using since, doesn't seem to be working when I try to start up Cubik Studio lately. This is what pops up:

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I'm pretty sure I'm entering my email and the key correctly, but I still get this every time:

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What's the solution here?

[HanFox]

You appear to be using an outdated version of Cubik Pro as it's referring to bdcraft.net instead of this website.

Download the updated program from here whilst logged in.