To get more specific help from the community, please share additional information:
1) focus on a specific app for now
2) focus on a particular document (does the problem center on a particular document or ALL documents, or some set of documents?)
3) What are the error messages? Share screenshots.
To share a screenshot do the following:
1) get the item you want to share in view on the screen (if needed)
2) type the key combination: <command>+<shift>+4, then cursor will change to a crosshair
3) click and hold at one corner of the are you want to share
4) drag to the opposite, diagonal corner, release
5) in this forum, click the attach image icon in the toolbar. The icon is a small page with two mountains and a sun,
6) navigate to the desktop and select the file on the desktop named something like "Screen Shot 2022-07-22 at 4.46.25 PM.png"