You could try clearing your GW2 cache; instructions found via the ‘Support’ link above/below and ‘Search – Trading Post/Troubleshoot’.
You could try the Command Line Argument, -prefrest; instructions found via the ‘Wiki’ link above, and ‘Search – Command Line Arguments’.
You can contact the Tech CS Team via the ‘Support’ link above/below and ‘Submit a Request’ for assistance.
Good luck.