sorry do not know if this is an amazon issue or not but you may need to contact customer support, i have not seen an unknown error, help quit, but kindle is the only device i do not play
This is the only kindle connection information i can find, if nothing here does not help you in posts below you will need to contact customer support as not seen that issue before, Does look like a kindle issue though
I would like to know when the error on the Kindle Fire to access Candy Crush as folows "an unknown error occurred connecting to the Amazon Appstore" will be resolved
My Kindle Fire Serial Number is D025 AOAO 3196 027P