Maintenance for the week of April 15:
• [COMPLETE] ESO Store and Account System for maintenance – April 16, 8:00AM EDT (12:00 UTC) - 6:00PM EDT (22:00 UTC)
Have you made sure it's up to date? Although there's a patch today so a lot of addons will be getting updated today, it might be worth waiting to see if that fixes whatever problems you're having.