Having trouble with Privoxy

Hello.

I am having big trouble trying to run Privoxy.

I'm using MX Linux (based on Debian) and the version of Privoxy I'm
using is 3.0.28+deb10u1, which is the most up to date on MX's Package
Installer, as of this posting.

I tried it on Firefox-ESR version 78.14.0esr (64-bit) and
Palemoon version 29.4.1 (64-bit).

I set the HTTP and HTTPS proxies to 127.0.0.1 and ports to 8118 as
instructed but the proxy keeps refusing my connections, on both
browsers, so I have to turn it off to access the internet. 

I uninstalled my firewall (gufw) and Tor but I'm still having the same
problem. I even checked for Listening ports but I haven't found either
the browser or Privoxy running.

Last of all, I tried to start up Privoxy manually but I got this error.
The following output was:
[FAIL] Starting filtering proxy server: privoxy failed!

I have used Privoxy in MX Linux before and it worked fine but
now I'm having problems all of a sudden.

Please reply and help as soon as possible.

Thank you.