"Parsing filters unsupported" error during extraction of RAR file

I have received an .rar which I wish to unpack as it contains something rather important to me that I need to really have now. However even though I can view the contents of the .rar archive in the Archive Manager, I am unable to extract it due to this error:

The archive should contain two folders within it, each though contain at least 10 audio files as well as a PDF file each (I don't know what the contents exactly should be except for there should be audio files in there, and the content I have described is what I can see from the Archive Manager's view). So the only thing I am left with except the error is one of the folders and one of the audio files, but it says it has 0 bytes in it.

So how exactly do I fix this problem? I am running Ubuntu GNOME 16.04.1 with GNOME 3.20.

Information Update:

In reply to a comment requesting the output from the dpkg -l unrar unrar-free command:

Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name           Version      Architecture Description
+++-==============-============-============-=================================
un  unrar          <none>       <none>       (no description available)
dpkg-query: no packages found matching unrar-free

You can use:

sudo apt-get install unrar

or

sudo apt-get install unar

I recommend you install only one of these (unrar in my case). Then use archive manager:

sudo apt-get install file-roller

I did install unrar:

sudo apt-get install unrar

then to extract, go to the path of the .rar file and:

unrar x [filename.rar]