Zmaster 3000 front tire

I have a z Master 3000 that I purchased at the end of last mowing season. Yesterday I took it out for the first mow of the season and ended up pulling the right front tire off its rim. I always thought this was a solid tire but apparently it wasn't. there was a bunch of Gunk that came out of it, sorta a liquid thick paste. Can a regular ol Tire Repair Shop fix this or do I need to purchase a new assembly?

Thanks for the help.

What is in the tire is fix a flat.

If the tire is still on the rim you just need a ratcheting strap wrapped around the tire and tightened till the bead touches the rim all the way around. Then add air till the bead pops. This is most important. Release the air till it it easy to release the ratcheting strap. if not it could puncture the tire. Then after strap is removed air to correct pressure.