Hi, Missii. It is easy. You may gave her a candy, green gloves to something she got (coin, bug, piece of picture). Check if she has food, buy her a grocery bag. Also, check if she is tired, put her to take a nap, or read a magazine, or watch tv.
If she has children, drag them to her to tell them a story...

Ok, try this. Go to menu and change on OPTIONS, the "Reverse Day/Night" from Yes to No, or vice-versa.
It is morning in UK, may be your peep worked whole night, you see? If you set to be allways day, she will gain strenght.
BTW, you don't need to buy green gloves, it is free.
Put her to rest in bed or to take a nap. Be patient, she will want to wake up to soon. Let her rest as needed, ok?

The green (and red) gloves are as people here in forum call the hands you have left side of your screen to a Pavlov training. Good actions, green glove on your peep. "Don't do that anymore", slap with the red one.

The green glove is in your tool tray to the left. You might think of it as the "praising glove". There's also the red glove there for scolding, so make sure you don't pick up the wrong one by accident.

However, it does take time for a peep's mood to change. Don't expect them to cheer up immediately. Give it an hour or so.

Prasing (green gloving) certainly actions allow you to get trophies! See Help on Menu to further details

Another idea, Missii. Buy her at Store a can of Energy Drink. It is the "Z", the blue one. Give her and see!

It is almost noon, I need to prepar a meal in my real life. See you. Good luck.