Please uninstall the app and install it. Your boosters will be lost when you uninstall, so be aware of this.
Then you update and please clear the cache. Then it should work.
Otherwise, please log in again.
Hi @MrsRachel and welcome to our adorable Community 😊 I am sorry that you are experiencing this issue. Can you please make a screenshot so I can see what exactly is happening? If you don't know how to do it, follow the instructions below.