Model won't save

Sketchup schools model not saving. Coming up with Retry, then when I press the retry button it does not work, it comes up with a picture

Try purging unused compoennts and then unused materials. Does that change anything?

Thanks DaveR all sorted, the pop-ups were blocked meant the website wasn’t able to load the popup to save the files to OneDrive.

Ah… The dreaded pop up blocker…