If she's not verbal that makes things difficult, she can't really tell you why she's upset if she doesn't have the words to tell you. Do you read to her every night? Both seeing the words on paper and hearing you say them will help her to know what those words mean and might make her more confident to use them herself. Also, make it more fun, like a game. Ask her questions that require more of an answer to them, like let her color, but when she wants a color she has to say that color for you to give it to her. Make that funny though, like if she wants a regular skin tone for human skin but doesn't say what she wants, give her green or purple, to see if that pulls her out of shell and gets her to laugh. Always try things that are more fun and silly, that way she won't feel overly pressured and have a meltdown. I hope this might help, if not tell me what happened and I can think about what to do more ok?