Make sure you are going to your organization's website to sign in -- not www.teamsideline.com. If you need help finding your organization, log out of www.teamsideline.com and click Find Organization on the left-hand navigation bar. Make sure the Search Type is Organization and type in the Search Value field at least three characters for your organization's name. Pick the State and click Search. In the Search Results list, click on the link where you see your organization's name to be taken to their website.