Here are some things you can try:
1. Use a personal computer, NOT a mobile device
2. Make sure all your pop up and ad blockers are off, including your browser’s built in pop up blocker
3. Close your browser completely and reopen it
4. Clear your browser’s cache and cookies for all time
5. Try an incognito browser window
6. Try a different browser
7. Try a different device
If you're still having trouble, please don't hesitate to reach out to support.