Old mobile home wiring, outlets stopped working
Hire an electrician.
If your outlets are catching fire, there’s a significant safety problem present since your house clearly isn’t wired to code. Electricity is dangerous in ways that aren’t obvious to a layperson, but a trained professional should be able to safely solve your problem for you.
It’ll cost you some money, but it’ll cost you less money than buying a new house would if your house burns down due to dodgy wiring - especially since it’s possible your insurance might refuse to pay for it due to a pre-existing flaw of the property that you knew of and failed to take steps to correct.