Per legal regulations, Underdog is required to verify your current location to determine your eligibility to participate in contests.
Open your device "Settings", then select "Apps"
Scroll down to "Underdog", then select "Location"
While in the "Location" tab, allow location access. Please make sure "Precise Location" is toggled on as well.
When allowing location access, any of the 3 prompts may be selected depending on personal preference.