I can't save my documents.

It’s showing error in writing sub-document context.xml
I deleted Libre Office and reinstalled yet it doesn’t seem to make any difference.

Hi @Marisol!

  1. Try to reset user profile.
  2. Don’t post as Community Wiki.

See https://bugs.documentfoundation.org/show_bug.cgi?id=112235 if you have an old version of LO and your file contains images. With problems like this it helps enormously if you give more information, such as LO version, and how complex your document is.