My IPhone 6 got deactivated?

I forgot my passcode on my iPhone 6 from sprint carrier and i used find my iPhone to erase everything on it and now it appears to have deactivated and i don't know what to do

You reported you OWN phone as stolen - and YOU activated the security features that would prevent a REAL thief from accessing your information. Take your self to the store - with LOTS of ID, and your contract, etc. - and see if they can somehow rescue you. Of course, anything on that phone you did not have BACKED UP is gone. This is the price of the lesson, my friend. What you have done, BTW, is called "BRICK your phone" - because it's about that useless now.

Talk to Sprint.

For future reference you don't (& shouldn't) use Find my iPhone to reset the phone. There's an option in the Settings (which wouldn't have mattered in this case cause you couldn't access it) & you could have done it through iTunes on a computer.