Trouble downloading videos

[camprevail]

Trying to download an instagram video, but it fails and says "Something went wrong"
New to java, so not sure why it's failing. Here's the stacktrace:

W/System.err: java.io.FileNotFoundException: https://instagram.fdet1-1.fna.fbcdn.net/v/t50.2886-16/100608210_3242654959098091_1560196136449913135_n.mp4?_nc_ht=instagram.fdet1-1.fna.fbcdn.net\u0026_nc_cat=107\u0026_nc_ohc=1frCzytYMdIAX-febHO\u0026oe=5ED40E08\u0026oh=cc754b9239846ec413d139e23ea73bf4
        at com.android.okhttp.internal.huc.HttpURLConnectionImpl.getInputStream(HttpURLConnectionImpl.java:251)
        at com.android.okhttp.internal.huc.DelegatingHttpsURLConnection.getInputStream(DelegatingHttpsURLConnection.java:210)
W/System.err:     at com.android.okhttp.internal.huc.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:26)
        at com.google.firebase.perf.network.zzd.getInputStream(com.google.firebase:firebase-perf@@18.0.1:58)
        at com.google.firebase.perf.network.zze.getInputStream(com.google.firebase:firebase-perf@@18.0.1:11)
        at com.google.firebase.perf.network.FirebasePerfUrlConnection.zza(com.google.firebase:firebase-perf@@18.0.1:22)
        at com.google.firebase.perf.network.FirebasePerfUrlConnection.openStream(com.google.firebase:firebase-perf@@18.0.1:2)
        at com.storyPost.PhotoVideoDownloader.fragments.DownloadPostFragment$downloadFIle.doInBackground(DownloadPostFragment.java:489)
        at com.storyPost.PhotoVideoDownloader.fragments.DownloadPostFragment$downloadFIle.doInBackground(DownloadPostFragment.java:405)
        at android.os.AsyncTask$2.call(AsyncTask.java:333)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:245)
W/System.err:     at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641)
        at java.lang.Thread.run(Thread.java:764)