I paid for this app and it wont work – MasterFX HD - Design like a PRO in 5 minutes Review

Fix this app. I paid money for it when it came out which was pricy for an app. Can't download not one category now. U need to refund people their money or fix this issue. I'm not the only one having this problem. Give me my money back.
Review by Pessimistic me on MasterFX HD - Design like a PRO in 5 minutes.