Hello, I tried sending in this query via your online form but it just refreshes the page
Don't fret about the page refreshing after you submit your message. That's just the way that page werks.
Your question was definitely sent to Amanita Design support. In the meantime we can offer you our standard response to "screen goes black after..." questions:
Delete then re-download Botanicula to your Android device.
You will have to re-play levels 1 through 5 again, but since you're already familiar with those you can just breeze right through them.
Please write back to let us know how things turn out.