Jakkifrost

Also I have no money because I can't sell anything.

I beat the elite 4 champion for kanto talked to oak ended up back at my house and my game did a connection lost. Now I'm back in front of the champion and it says I have to beat him again. All my pokemon but one are dead and I have no healing items because I used them beating him the first time before the connection lost. What the problem is?!? it took me a year to finally beat him.