Share your experience!
Unable to install to my new Sony xperia XA
Hello again!
Glad to hear that you managed to solve the troubles with installing the Facebook app! 
Let me know if there is anything else I can help you with!
I so hate when you big corporate blame others than instead of fixing the product!
"do a factory reset" is like "ok, buy a new phone and it will be ok!" because after factory reset you loose EVERYTHING! But you just don't care...
Factory resetting or software repair using Xperia Companion is not like buying a new phone, they don't cost you money and you don't lose anything if you backup before you proceed.
They fix many software problems, and they are official solutions provided by every mobile manufacturer out there.
Do you have a similar issue that you want to contribute here?
Guys, I found the solution! Just enable Facebook App Installer and Facebook App Manager force close clear data and Install the Facebook app on playstore.