You are at the Rising Stones in Revenant's Toll in Mor Dhona and not the old Waking Sands in Vesper Bay right? The Scions of the Seventh Dawn moved to Mor Dhona back in an earlier main scenario quest and so that is where the story quests are gained from (looking in the background of the screenshots you took, it seems you are indeed at the Waking Sands still and are thus in the wrong place - I recognize the Waking Sands' walls in those pictures).

If you're not there, head to Mor Dhona and enter the bar Seventh Heaven near the aetheryte, and inspect the door at the back, this is the entrance to the Rising Stones. The Solar (and Minfilia, and by extension, the next main scenario quest) are found in the rear of this building.