If the user enters an excessively large number as a stop number, the app ends up in error:
```
FATAL EXCEPTION: AsyncTask #1
Process: it.reyboz.bustorino.debug, PID: 11758
java.lang.RuntimeException: An error occurred while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:309)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:354)
at java.util.concurrent.FutureTask.setException(FutureTask.java:223)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:234)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.NumberFormatException: Invalid int: "676854551518484848"
at java.lang.Integer.invalidInt(Integer.java:138)
at java.lang.Integer.parse(Integer.java:413)
at java.lang.Integer.parseInt(Integer.java:367)
at java.lang.Integer.parseInt(Integer.java:334)
at it.reyboz.bustorino.middleware.AsyncDataDownload.doInBackground(AsyncDataDownload.java:119)
at it.reyboz.bustorino.middleware.AsyncDataDownload.doInBackground(AsyncDataDownload.java:46)
at android.os.AsyncTask$2.call(AsyncTask.java:295)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
... 4 more
```
Please validate the input
Thank you