In the Dragonspyre quest, the last mission I ever received was going against Vesta ShadowMark, and after that I have no forms of quests to do side or main. To be noted, I don't have the portal to Dragonspyre academy, but I can access it through the forum.
Sorry to hear you've had trouble finding your current main quest in Dragonspyre! Please contact Customer Support and they can help get you back on track.
