I checked my motherboard and nothing was loose. I saw that the rear fan cable was touching the rear audio port housing and thought that might be causing the issue so I grabbed a cable tie and gently adjusted the rear fan cable so it was not touching the rear audio port housing. But after a while I got the exact same message as before and I am still getting it!!
The only other thing I think of to do to figure out why it is doing that is to contact Realtek and see what they say.
There is one other thing that could be a possible cause, but it is such a 'strange' phenomenon, But I have heard/read about it causing similar problems. That is when a household appliance such as a Furnace, Refrigerator, Freezer, etc. is on the same circuit or is near the computer, when that appliance draws enough power to start a motor as an example there is EMI (Electro Magnetic Interference) which can cause this type of issue especially if there are power cables crossing over or under other cables and both cables are touching. The cabling situation under my desk, it looks like a tornado went through!! LOL Cables going every which way, crossing over and under each other!! It looks like I am going to have to do some cable management under my desk!! UGH!!! LOL Not much room under the desk to get under there and work!

I recently reinstalled Windows 10 on my computer and i had to download Realtek HD Audio Manager again. But now it's not working, the program won't open, there's no icon in the taskbar and no message appears if i plug my headphones in.
I tried reinstalling the audio manager, but it didn't help. Any tips?
EDIT: I HAVE FOUND A SOLUTION!!!
1. Open 'Device Manager'
2. Expand 'Sound, video and game controllers'
3. Search for 'Realtek High Definition Audio' and right click it.
4. Click on 'Update driver'
5. Click on 'Browse my computer for driver software'
6. Click on 'Let me pick from a list of available drivers on my computer'
7. Select 'Realtek High Definition Audio'
8. Restart after installing
If you don't get a step please ask or take a look at this picture: