Unfortunately, I am not seeing any issues on the URL we have on file for you. You may wish trying to clear the cache by going to ACP -> Support -> Clear System Cache (the UI may look funky but it will function).
If you are seeing issues still, please provide us access:
We would need to look further into this for you, however the access details on file appear to be incorrect or missing. Could you please update these details by visiting your client area, selecting the relevant purchase, then clicking "Review/Update Access Information" under the "Stored Access Information" section.
We look forward to further assisting you.