Android - Files not found, when running app in device

I’m trying to run my app on a Tablet with Android 6. After the splashscreen is showed, the screen becomes white and nothing more happend. Using the Chrome Inspect, I found out the files are not been found. What should I do?

I’m using Ionic Version 3.19.0

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So, I figured out what the problem was. I removed the tag from the index.html and it started working…