I bought and downloaded yesterday what was advertised in the App Store as bring top paid app. It was a kids game "team umizoomi" counting game. However every time I click into the game it crashes out. Who do I contact to report this issue?

10-11  Source: Network gathering  Views:0 

As a top paid app- a team umizoomi game. However the game crashes once opened. Can anyone shed light as to where I can report this fault?
Contact the app developer here >  http://www.nickjr.com/home/write_to_us.jhtml
If you don't hear by back within 2 to 3 business days, report the issue to Apple using the email form here.
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