It appears your Google Ads account has exceeded the maximum number of manager accounts allowed by Google Ads, which is five. Adwisely needs to link to your account as a manager to run and optimize your campaigns, so onboarding pauses until a slot is free.
To resolve this, please follow these steps:
1. Go to your Google Ads account: https://ads.google.com/home/
2. Click Admin (action 1).
3. Select Access and security (action 2).
4. Choose the Managers tab.
5. Remove at least one unused Manager that has access to your account.
Once you have removed an unused manager, return to Adwisely and click Retry to continue onboarding.