Yeah, sure, swearing will help you.
Instead rather give important information, unless you just came here to complain and not wanting to ask for help.
1. What error?
2. Where is the file saved - local HDD or network?
3. Will "Save as..." work?
4. When closing ID and opening again, it should restore the files (data loss due to crash prevention) - will you then be able to save?
This is a know bug that affects some users. While we wait for a fix, the current advice seems to be export to .idml. open that and save a new .indd to continue.
1. cannot save the file ever u save or save as... it wil appear an error icon.
2. local SSD
4. you can just close it with "Don't Save"
How much free space is on that ssd?
total 500Gbs ssd
Free space 226Gbs
Macbook Pro Retina
Can you export to .idml? It sounds like the bug I mentioned earlier.
In Doc Maik's list, #4 should be Force Quit, not close, but I don't think that's going to help and I wouldn't suggest it unless you are unable to export to .idml. If you do try it, try the export again as the very first thing after reopening ID.