Facebook OAuthException: (#1)

Question

I have a few applications which upload image to user profile. A few hours ago all applications were working fine but now when uploading is requested, it gives this error

Answer 1

No, the error is caused by the system cannot get the image file. Facebook will not allow the empty image field appear in the api. So it return Fatal error: Uncaught OAuthException: (#1) --- although it does not relate to the OAuth and OAuthException.