Leaves curl, become crispy and have weird colors

This looks like a very easy calcium or magnesium deficiency judging by your feed regiment it doesn't show that you're giving them any and those symptoms are tell take signs of cal/mag deficiency. Hope this helps.

I haven't looked at your diary only the photos so the root cause I cannot be sure, but from the photos it looks like they are CalMag deficient or locked out.

The plants did not get Sensi grow in flower they got Sensi bloom. I accidentally listed it wrong. Someone else took care of the plants last week. Could this be due to too much water? I had not watered the plants for a few days because the pots were too heavy. This may be the reason for a lock out. Idk

Very over fed............nitrogen toxicity basically.

The problem can be found in the nutes you're giving her... she's not in vegetative state any more and now requires bloom nutes, not grow nutes! I think you've probably OD'd her on nitrogen at this point (they need far less nitrogen in flower than they do in veg) so I would go so far as to tell you to flush them out - 3x the pot volume of pH'd water through each (in your case, 21L) adding 1/2strength BLOOM nutes into the last liter - then let them dry out completely before giving them another drink of plain water... after that, you can go to the strength you would normally give of bloom nutes... But they've been overloaded with nitrogen and underfed with P and K ... Good luck!