Error importing project resources when saving on cloud. Project saved with resources missing

Hi
I’ve had problems trying to save on cloud for the past few days. Although the project is saved, some resources, like images and audio, are missing. The following message appears when the error occurs: “Error: request failed with status code 400”


When I open the project saved with errors from the cloud, the following message appears:

I’ve tried closing and reopening GDevelop, and deleting some old projects from the cloud to free some space but the error still happens.
I don’t think my project is too big but I’m not sure how to verify that. The folder where my project is saved in my computer is about 48mb.
My internet connection is pretty good and stable so this might not be the problem.
I’d be grateful if someone could give me useful information on how to solve the problem or at least understand it. I can provide any additional information about my project if needed.