what happens if you say allahu akbar

Question [1] Is repeating phrases like Allah u Akbar allowed in the salah if they were not correctly pronounced once.. many times it happens that i am able to say "Allah u Ak" "bar" is not pronounced properly one time so i repeat it and say "Bar" again clearly. Does this invalidate Salah? [2] tidak bisa connect printer sharing windows 11.

what happens if you say allahu akbar