You appear not to be taking into account that your medium has "start fertilizer works immediately and provides an optimal nutrient supply for up to 6 weeks." You are only at day 33 (4.7 weeks), yet have been feeding your funky fertilizer. Any nute use has apparently not been needed yet.
Besides your fertilizer not having right N-P-K proportions, it's probably just that, only contains cheapest N, P and K sources, simple salts, not chelated salts with optimal bioavailabiity. And your fertilizer likely has zero trace elements and other needed and good stuff, that are normal in even the cheapest cannabis-oriented base nutes.