'Document loading failed' error with Collabora-based NextCloud office within NextCloud AIO

Hi everyone,

I have been using the Collabora-based NextCloud Office suite within NextCloud AIO for quite a few months (though I’ve also tested out Euro-Office recently). I received the following message for the first time today when attempting to load a spreadsheet:

I’m not using any reverse proxy other than the one that’s built into NextCloud AIO.

Is anyone else getting a similar message all of a sudden?

(The error message did go away once I refreshed the page, so perhaps this was just a one-time blip–but if there’s a potential configuration that I need to change within my admin console, I’ll be happy to do so.)

As noted, the error message did go away after a little while. I ended up replacing the existing file with a new one from my laptop, and now I’ve gotten a few other error messages, including:

and

I imagine that these are just temporary as well; if they don’t go away soon, though, I’ll let you know.