You must first unlock MetaMask by entering your password as shown below. After unlocking, refresh this page to continue.
NGO Xchange uses MetaMask to detect your wallet address and to interact with Ethereum blockchain.
Use the link below to download and install MetaMask browser plugin.
You seem to be on wrong network. Please connect to Rinkeby network in MetaMask as shown below. Refresh the page after changing the network if the page is not refreshed automatically.