No article before a noun

Solution 1:

It's all fine.

Here is something which might help you understand the problem.

Michael Swan, Practical English Usage, 3rd ed. point 179(3)

'In informal English we often leave out unstressed words at the beginning of a sentence if the meaning is clear. The words include articles, possessives, personal pronouns, auxiliary verbs and the preparatory subject there

(The) Car's running badly

(My) Wife's on holiday'

Michael Swan Practical English Usage, ed. III