Hello hldemo10,
Welcome to Apple Support Communities.
We understand that your Apple Pencil and Logitech Crayon are no longer working as expected. We are happy to help.
Can you tell us what happens when you try to use the Apple Pencil or Logitech Crayon with your iPad? Are they both connected to your iPad? Are they both charged as expected? When did you last use them with your iPad? Which iPad do you have? What is the exact iPadOS?
For your Logitech Crayon, we recommend contacting Logitech for support using the steps here: Contact a third-party vendor - Apple Support
"Find the vendor's contact information
To find contact information for a product's vendor or developer, visit their website or search the web for their name or the name of their product.
If you're not sure who made the product:
- If it's an app you can find on the App Store, the App Store will show who made it and where to get support. You can also open the app and look in its menus and settings for contact information. If the app is installed on your Mac, you can select it in the Finder, then press Command-I to open an Info window that might also show who made it.
- If it's an accessory or other device, you can contact the place of purchase for help identifying who made it."
Let us know if you have further questions.
Take care.