File browse doesn't work anymore

Hi guys.
I have some trouble with files browse on Devices, even if until now it was worked well. I followed the Nic Raboy (my myth) post about it https://www.airpair.com/ionic-framework/posts/ionic-file-browser-app and it doesn’t work. I tried to update the cordova library and the plugin but it still doesn’t work. Please help me.
Thank you