what to do with my existing visa in my home country

I have a problem.... the school who hired me and who got me a z type doesn't wanna hire me any more coz they cant get me an authenticated contract with a stamp in the embassy of my nation in china.... they find it a hassle.... im still in my home country.... the govt in our country dont wanna let me leave without it.... now the school dont want to hire me? What can I do?