The structure is in dusk city right? I had visited guild and got event and visited structure a lot of times but still can't continue
That should be it. The order is
Guild -> Structure -> Living room -> Back to Structure.
I tested it on a new 0.54 save and was able to do it. I'm not sure whether you are stuck because you are missing a step or if your save is bugged. The fact that neither part is green for Hidden Links makes me thing its an issue with your save.