CumulusMX on OSX....HELP!

[TXRweather]

Hi guys. I have been using CumulusMX on Win7 Pro for a year and a half with no issues. When it comes to PC's, I am a whiz...BUT, I am a newby at OS X. Just picked up a Mac Mini and have spent the past 3 days getting my station connected to the Mac. I got it connected tonight and now I am getting this error:

Last login: Thu Mar 16 18:07:35 on ttys000
DavesmimacsMini:~ davesminimac$ cd desktop/cumulusmx
DavesmimacsMini:cumulusmx davesminimac$ sudo mono CumulusMX.exe
Password:
Current culture: English (United States)
Serial: 561E9E91D4A9244DE0A12ADD61755C3F
Cumulus MX v.3.0.0 build 3043
Today.ini = data/today.ini
Last update=2017-03-16T18:09:39
Connected to station
6:09:43 PM Downloading Archive Data
[ERROR] FATAL UNHANDLED EXCEPTION: System.Net.Sockets.SocketException (0x80004005): Address already in use
at System.Net.Sockets.Socket.Bind (System.Net.EndPoint localEP) [0x0004c] in <f8255d9ef0594d18ae2c0d97286b9a80>:0
at System.Net.EndPointListener..ctor (System.Net.HttpListener listener, System.Net.IPAddress addr, System.Int32 port, System.Boolean secure) [0x0004a] in <f8255d9ef0594d18ae2c0d97286b9a80>:0
at System.Net.EndPointManager.GetEPListener (System.String host, System.Int32 port, System.Net.HttpListener listener, System.Boolean secure) [0x000be] in <f8255d9ef0594d18ae2c0d97286b9a80>:0
at System.Net.EndPointManager.AddPrefixInternal (System.String p, System.Net.HttpListener listener) [0x00064] in <f8255d9ef0594d18ae2c0d97286b9a80>:0
at System.Net.EndPointManager.AddListener (System.Net.HttpListener listener) [0x00030] in <f8255d9ef0594d18ae2c0d97286b9a80>:0
DavesmimacsMini:cumulusmx davesminimac$

I know there are some OS X wizzes out there that probably know what is causing these errors. Can anyone shed any light and possibly a solution?

Thanks in advance.

[water01]

[ERROR] FATAL UNHANDLED EXCEPTION: System.Net.Sockets.SocketException (0x80004005): Address already in use

That is usually caused by Cumulus MX being loaded twice i.e. the socket is already in use by the Cumulus MX already running.

[TXRweather]

Thank you David for your reply. My station connected this afternoon when I got home. I thought about it this afternoon at work and while driving home, I realized last night that I had never done a complete power down on the Mini Mac last night, just a few reboots. I powered it down for about 1 minute and then rebooted the Mac. I typed in my terminal script and it came up and connected without error this time. I opened Safari and type in the local host command and it actually worked. Now I have to see if it is reporting to all my sites I send info to. Hope I don't have to repeat this learning process again!