If you are using a pre-fertilized soil, you wont need fertilizers up to the 5th week,, I am using Bobizz Grow+Bloom+Topmax too and I never had such problems following their schedule, just be sure to alternate with water. That looks like an accumulation of minerals, the plant is clearly telling you with those yellowish bended leaves that she isn't able to absorb nitrogen, so stop giving minerals such as calmag or other fertilizers with an high percentage of P-K. To solve this issue i suggest to give only Topmax (1ml per liter) added to the water for the next 2 weeks, it will help the roots absorbing the excesses, rebalacing the soil.
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