PineApple chunk,ogkush,white widow

These past 2 weeks I’ve been struggling with my light timer. Found out I was having issues with the marshydro light app. Not Turing the light off when needed, bought a new timer and I can seem to figure out the new one either so been manually Turing off and on the light :/ don’t know if it’s stunned growth cause of the light issues or not. Trying to keep the soil somewhat dry to prevent root rot. Don’t know why the og kush is showing a little yellowing gotta figure it out!