When i try to log into tekkit it i click development build or recommened build, get this error

"...HTTP respone code: 503 for URL: http://session.minecraft.net/game/joinserver.jsp?user=_XxHazelxX_&session=-6476:".. and thats all i see"

and something im missing like 4 mods , Please Help me!!!

Minecraft.net is down Hazel so no MC server will allow logging in. Check help.mojang.com for status.

Ohh ok thanks so much <object class="emojione" data="https://resources.enjin.com/1489581540/themes/core/images/emojione/svg/1f642.svg?0" type="image/svg+xml" standby=":)">:)</object> i didnt know if it was an error