Welcome! It's very difficult to make a balanced feed at home; I had poultry science and nutrition classes in college, and would never try.
If your birds are malnourished, the fix is to return to a good balanced diet immediately. The ration balancer needs to be very fresh too; it ages out and looses some of the vitamins in the mix.
Did you work with an actual nutritionist to develop this diet? Have you had batches analyzed?
Your obviously sick hen may have another problem entirely; she's weak for some reason.
I feed Flock Raiser, with oyster shell on the side, and have for many years. There must be something out there that you would be willing to buy already mixed, at least I hope so.
Mary