With tajwid we have to put the nun in the lam and just recite like if it’s ألّ يَقدِرَ (this isn’t correct to write this but this is what we heard)
And when we récite like this the app count it like an error, but it’s not ! Barak’الله u fikum
(Please look at the screen for the verse and to understand my request Jazakallahu kheiran)