Your girl looks short on multiple fronts: N, Mg, Ca and P for starters. Unfortunately you're into flower so affecting any of these issues is going to be difficult.
I'm assuming you're in soil? Can you elaborate on the specifics?
A deficiency results from one of two things...either the nutrients aren't being provided in the medium OR they are being provided, but they are unavailable to the plant (lock out). The first case is self explanatory, and if you feel you've not been feeding enough, the solution is simple. The second case is a bit more complex. Is your pH causing the lock out or have you added too much of one or more elements which is causing a lock out for other elements? Only you can answer these questions. This is where I'd start.
Remember, you're in an Auto grow, so the less you screw with your girl, the better...time is of the essence. Good luck.
