Api calls stop working after publish on Play Store

Hi!, I have a simple issue (I hope its simple :slight_smile:)
My app gets one value from an api. This works perfectly when I test on my device, also if I test it from Ionic View.
Yesterdey I build the app, I follow all the steps, sign align. Today I download the app, but the api call does seem to work, the one value I get from the api is not there.
Am I missing something?