corrupted document new

I am using adobe cloud on android tablet, I was using an important doc. today and editing it, then I openend another one, when I tried to open my important document , I couldnaccess it today showing me a message of " Error, The document cannot be opened because it is corrupted or damaged"

Is there any way to fix my corrupted document

is autosave working ? how can I access my autosaved documents ?

Many thanks