Flowering issues

If ph is in range and ppms were low then its not a lockout. A bottle of calmag or amending soil with dolomite lime next run should rectify your problem. If you are in week 7 flower I would suggest watering in calmag from a bottle as it is in an active form or continue with what you have. Unfortunatly it's too late in the game to fix the issue but you could possibly give them an extra week or 2 to try and let them fill out. You could also pull off the damaged leaves since they can't photosynthesize to get light to the green leaves below.

I will do that, thank you so much for your help 🙏

I’m using the trio pack from biobizz, I thought it was a ph lockout

It could be that for sure. I'm just calling out the deficiencies I see. Those brown circular spots are from calcium deficiency. Some of the yellowing is probably from magnesium but tissue damage from the lack of calcium could also be causing it. Were you running any cal/mag?

Best way to test for lockout is to check runoff ppm. What's the ph of your input water?