Dani, I remember your questions in the past.
Well, as said, if you're using the Enhanced submod with its fully content, leave it aside for now (it needs a last repolishing), or in case you can take part of it for now (e.g. the new buildings, the new units, the new environment textures, some ancillaries and traits, etc.)
In case of save corruption, keep always several of them for different turns, so that you can revert back anytime.
While as regards the download links, I do not have one for google drive atm, but there is another link on Mediafire with all the setup files put together, and not being divided as in the main download page...
Here the link:
http://www.mediafire.com/file/wbaj08...IS_7_SETUP.ZIP