Error 702 Unable to prepare

MIT App Inventor Help
1

Hello to everyone. I am new to this forum and have a problem for my blocks. I made my blocks like in the picture, but I keep getting Error 702 Unable to prepare error. I want do Radio stream app. I want to make radio application, but I will switch between different links.What should I do ? Please help

blocks
blocks1233×371 42.2 KB

2

You don’t ask the Player to “Play” ?

3

I dowloand TaifunPlayer extensions. Yeah I realize and I changed my blocks like in the picture. Now, when I press the next button, I can’t play it in order. What should I do in this situtation ?

blocks(1)
blocks(1)729×572 33.6 KB

4

Change almost everything:

grafik
grafik1536×1027 273 KB

And use mp3 as they load / play faster when streaming.