Hey Johnny_Cashew_169,
It looks like you’re attempting to add your Google contacts using a CardDAV account. Have you tried adding the account using the Google option instead of Other?
These articles may prove helpful:
Sync Google Contacts with your mobile device or computer - Computer - Contacts Help
Use other contact accounts on iPhone - Apple Support
From the Google article, specifically try this:
1. On your iPhone, open the Settings app.
2. Tap Contacts. You might need to scroll down.
3. Tap Add account. If you've already synced a Google Account to your device, tap Accounts.
4. Tap Add account > Google.
5. Follow the instructions to sign in to your Google Account.
6. Choose which Google apps to sync with your device. You can update these settings at any time.
7. Tap Save.
Still not able to sign in? Let us know. We're here for you.
Regards.