I can't seem to get past enigmatic grotto in Umbra forest, does anyone have any advice?

I thought that this thread seemed to best fit into the General Discussion category, but I could be wrong.

I would suggest posting this in the FAQ (Newbie Friendly) forum. You'll be able to get more advice there.
First, try re-statting. Fire is a magic-attack element, so put Jemini's points in Intelligence and Dexterity, and not in Health. Also switch her gear to focus on those two skills, and not the others, and make sure she's in the second slot of your party.
Shadow is magic-defense, so your points are good for Faeli, but her Armor and Accessory 1 need to be switched, and a stronger Relic more attuned to the Shadow skill set would be good for her as well.
If I remember correctly, you can also get a third party slot in the Sanctuary of Saerielle at around this point. Your Ny'Vene Mist would make a very good physical attacker due to her upped stats, adding in a bit of variety, which might make all the difference. I'd recommend setting her to the Air tree and putting her points in Strength, and Dexterity when you reach level 30 with her. Of course, you'd have to level her up a bit first and get her some gear that ups Strength and Dex, but she could make all the difference.
I hope this helps!

Thank you! And I will set up a new thread in the FAQ category for this. Thanks again for all the advice.

Of course! Feel free to ask if you ever need help.