fail to get document because the client is off line…. :-(

Ming 8 months ago in iOS • updated 8 months ago 3

My internet connection is fine but this pops out when I open it and it won’t let me use any of the function even if I already paid for premium pack... 

hope to be able to work on it offline。。。

so every time I want to use it,I need to uninstall it and reinstall it。。。pls help。。。