How to save the songs from iTune to iPhone 4S?

Ok so I deleted all my music from my iPhone by going to Settings>General>Usage>Music>Delete.

Now I connected my iPhone to iTunes to re-sync the songs but It doesn't want to save at all. I Go to iPhone>Music>Sync and it doesn't save. Any help please? This is so freaking annoying

(I deleted all my music because I couldnt swipe ans delete 1 album)

Would be helpful to know if iTune is on a Mac or PC and what version of iTunes is being used.

Check "Help" while in iTunes and "Sync iPod, iPhone, etc. For information about syncing automatically or manually.