Sync account creation error

I just installed Everdo and I evaluating it as a replacement for Nirvana (basically dead development for years). However, I got an account creation error when creating a sync account and moreover, whenever I try to import JSON tasks it does nothing.

Hello Michele,
What error do you get and at which step?
Are you importing data in the Everdo format?

Hi, all I get is a generic error (attached)Cattura

I exported JSON from Nirvana but I have no options while exporting it, is there a specific way?

While this issue is being investigated, could you try creating an account on the web page https://sync.everdo.net/signup and then use it for configuration?

Unfortunately there is no common format for data between different apps, so simply importing another app’s data is unlikely work. JSON is just a generic set of rules suited for storing data in a readable form - it doesn’t grant that apps understand each other’s data.