You most likely don't have Guild rights to open it. If your guild founders and leaders are inactive probably best to try to find a more active guild that opens GE or you can even have a solo guild if you want if all you're interested in is just doing some GE. Also if you have questions about the game probably best to post them in the Questions section of the forum.During the Guild Expedition I can not open the second level. All required supplies have been meet, but still can not open the second level.
Fan wiki: http://forgeofempires.wikia.com/wiki/Forge_of_Empires_Wiki
Official wiki: https://en.wiki.forgeofempires.com/index.php?title=Main_Page