iTunes is not syncing my music

Ok so i have an iPhone 6 on iOS 10.3.2 and for 2 hours im trying to sync my iTunes library with my iPhone but it doest work.Im on the latest version of iTunes i and iOS atm.I tried with "Entire music library" then with "Selected playlists"..then i tried to drag and drop from iTunes library to music(on device) and then click Sync but still no results?What am i doing wrong and how can i fix this problem?

 

Nothing.Its like a normal sync.But before when i was syncing music it displays the songs name now it skips this step.
It says this
backing up
preparing go sync
Finished syncing

Thats all and theres no music on my phone.
When i go to iTunes and click on "On my device" > Music , i see the songs but they look like this

 

MP3 file,i had the same sogns before i just deleted them a while ago.But if my word isn't enough tell me how to cofirm the format.

--- Post Merged, Jul 14, 2017 ---

There are are the songs perfectly fine in the iTunes Library i can can even listen to them.

 

Wifi sync didn't work.
@Hemens Can you explain what do you mean by "adding new source folder" im not sure what you mean?
Do you want me to create a playlist or..?

 

it is not.I tried everything you guys suggested.I even updated to iOS 10.3.3. and yestarday there was an update for iTunes and it still doesn't work!
http://prikachi.com/images/731/9152731u.jpg