Why i cant resume my apple watch update

Hello adelyn99.

Thanks for reaching out to Apple Support Communities. We see that you are having issues with updating the software for your Apple Watch. We will be glad to assist.

Checkout the information below from this resource: Update your Apple Watch

"If you need help updating

Try these steps:

1. Make sure that your Apple Watch connects to its charger. 
2. Restart your Apple Watch. Press and hold the side button until you see Power Off, then drag the slider. To turn your watch on again, press and hold the side button.
3. Restart your paired iPhone.
4. Try to start the update again. 

If the update won't start, open the Watch app on your iPhone, tap General > Usage > Software Update, then delete the update file. After you delete the file, try to download and install watchOS again.

Learn what to do if you see 'Cannot Install Update' when updating Apple Watch."

Cheers.