What crime can be charged in TEXAS for unknowingly selling stolen goods at a pawn shop?

I bought a lawnmower and week hacker from the people that did my lawn, and months later I pawned the items. It turns out they were stolen so I have a warrant in texas for burglary of a building? What are the charges for selling the goods if you didnt know they were stolen? What evidence is required to charge me with burglary of a building.