IDEAS?! double cookies auto BSF

I don't use calmag, it's my first grow and I only use a pack of organic fertilizers for autoflowers bought at the grow shop, but I've obviously done something wrong with them. I'll have to pay more attention for my next harvest! I understand that it might be a bit late to fix it, but the buds are still growing little by little. I'll see how it goes these days and hope to see what I can harvest! Thank you very much for your time, I think you hit the nail on the head with the problem! I'm going to research calmag and read about nutrient lockout right now.

Yeh, good with the water amount. After flushing it'll take a week for it to dry out so you can feed it again, so you may not notice much difference until then, do you use calmag?

The pot has 16 liters, so I did a flush with 48 liters. Is there any way to fix the blockage? The reasoning seems logical to me, but there are some (new) leaves that are completely green and looking good, could that be? You can see in the photos how some leaves with small buds are in better condition. I don't know what to do, should I leave it like this until harvest?

How much water did you flush through it? Looks like it's just locked out for ages, maybe getting minimal nutes through

Yes, I mean a flush. They are growing in soil https://edencultivos.com All my plants suffered from excess nitrogen when they started flowering, with burnt tips and curling upwards. I did a flush only on this plant (I have 3 more). The rest of my plants continued to grow normally with the excess nitrogen and it didn't pose any major problems. But the plant in question was delayed in forming the buds, as if it had taken a pause after the flush. I didn't see improvements with what I thought was excess nitrogen, but the plant started to flower and was acceptable. Now, with 1/2 weeks left until the end of flowering, it looks like this. I have continued to feed it with organic fertilizers once a week, with high levels of P and K, and a bit of N. And the micronutrients that each of them has as well. I have always watered with a pH of 6.0 - 6.5, during the vegetative stage they suffered heat stress, but I solved that by now and the environment should be in good condition. Thanks!!