ফেসবুকে ঢুকতে পারতেছিনা?

ফেসবুকএ ঢুকতে পারতেছিনা, এই লিখাটা আসে= Remote server or file not found You tried to access the address http:// m.facebook.com/, which is currently unavailable. Please make sure that the Web address (URL) is correctly spelt and punctuated, then try reloading the page. Make sure your internet connection is active and check whether other applications that rely on the same connection are working. কি করব???