Hello,
Im not an expert on burn, but I have burned several of my plants out of love- it happens.
Plants burn when the plant isnt acclimated to the strength of sun- like gradually move it from darker to lighter conditions which the plants culture can handle.
Anyhow, it doesnt sound good if you've torched the entire plant, was there anything spared? If the plant was overly stressed out it will drop most of its leaves and it might die, you will have to baby it now, keep it in much lower light conditions, high humidity and watch for any bacterial/fungus attacks....
Im sure other more experienced members may provide you with more insightful information.
Good luck!
--you said you had a paph, if the roots are healthy and the plant isnt overwhelmed it might release a new fan!