Store not available at this time : Badsignature error

[e-lane]

Good morning everyone!

I'm developing an app with ionic 3 and i'm using your plugin to implement in-app purchase.

For now i have published my app as test and i'm trying to verify in-app purchase of a product to remove ads on it.

The payment of product works fine, but my app displays a message after purchase : "Store not available at this time : Badsignature error"

I have seen on your code that this message correspond to error -1003 but I don't understand what it is it and how resolve it.

Can You help me please?

Thankyou in advance