Are you doing account login multiple times again and again from different location and somehow you don't logout and at the same time do multiple login via mobile and Tab which results in Google account blocked and worried of Google can’t verify my account issue.so follow recommended solution here
Visit … https://www.klusster.com/portfolios/fortuneserve/contents/292277?code=fc6934a4-1152-4865-b03d-ac8dc2ad4e74&share_content=true
read more..