Problems getting my Music to sync to my ipod
I have had the same iPod touch for several years now and my music is all of a sudden is not syncing to my iPod. The songs are in grey on my iTunes, it remains offline and will not sync. I have tried researching the issue and nothing is working. Advice online is to only show online music but I want these songs converted to offline songs. I have also done a software update, I have lots of available GB.
I need help I cannot get any more music onto my iPod.
iPod touch (5th generation), iOS 9.2.1