Is my plant ill?

Put on some reading glasses, get a toothpick and slide the membrane off the end of the leavs, if it is still on. Don't try to pry or force it open or hope the membrane rips -- needless physical stress that will potentially damage a coty or even remove one. Pulling off shells is a learned ability. Some small tweezers from a swiss army knife and a toothpick or similar can make it easy to do. Secure half the seedshell with the tweezers -- this holds the plant steady as possible throughout the whole process. Have your arm with tweezers situated in a way it can remain steady. Gently push open the seed shell on the opposited of the tweezers (push down? push up? whatever you could comfortably secure with the tweezers to start). Usually, you just give it a little effort and the shell opens a tad more and can just fall off at that point. They key is making sure the seedling doesn't move much during entire process.. this ensure all physical force is applied to the shell and nothing else. If membrane remains, slide it off as stated above. Once a sprout is above ground, as long as you can do this process without damaging the plant in a consistent way, it is far, far better to remove it ASAP and get that seedling proprly exposed to light. When i plant ~16 seeds, 2-4 regularly come up with shellheads. It's easy to remove without damaging them, if you do it right. plant pointy-side up to reduce shellheads... possibly adjust depth too, if they occur too often -- that's a bit of an opinion as to what is too often..

Hey there the line of if the inside of the seed is stuck on it. If you have super gentle hands you can pop it off but I suggest spraying water on it every few hours if possible and it will soften and pop off itself most the time it will do it on itself even without adding water

Looks like she’s just a bit stressed from having the shell removed too early bro it happens Nothing to worry too much about yet. Keep the top layer lightly moist (not wet), give her some gentle light and stable warmth, and she might recover fine in a couple of days. Sometimes the first leaves come out deformed, but new growth will fix itself soon. Patience is key here