(adsbygoogle = window.adsbygoogle || []).push({}); So here's the problem.
I downloaded Black ops 3 on the PSN Store and i got nuketown bonus map with it.
I gameshared with my friend black ops 3 and nuketown and it went fine.
However we stopped the gameshare and i decided to be a nice guy and give nuketown to one of my friends.
However when I try to play online it says i need playstation plus?
This has not happened before.
Can someone help please.

What you mean

His account was set as main on your ps4. Then he changed it.

I made him deactivate it completely and i activated my account on my ps4 but its still not working

Just buy it, it will fix the issue. You cant keep playing freely like so. I mean it is good to have free psn plus. But at some point you will need it.