WindGuru app on iphone doesn't show information?

I have an iphone 4s and downloaded windguru, when i went onto the application, i found my local windsurfing spot but it did not show the weather/wind/information etc… It just shows up white, then i tried more spots and they also didn't work, my dad also has a iphone 4s and he downloaded it AND it worked on his phone?

Do you have internet connection? It might not work without it, that is why the app would open but not show information. Also Maybe it didn't download properly due to break in connection or power shortage etc. Try connecting to the internet or redownloading the app by deleting and getting again (If it was free)

Mine loads all the favourites, but look just white on main page (it did work previously. However, if you click on the spot, the page does come up with all the info… Bit annoying.

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