Can't locate the Startup Profiles. Please try after installing Illustrator again.

[iiSanDiego]

I'm suddenly getting this error message when attempting to open a new document in Illustrator: "Can't locate the Startup Profiles. Please try after installing Illustrator again.  Illustrator will now attempt to create a default document."

Also, I'm receiving this error message when attempting to copy (non-outlined) text: "Can't copy the objects. There isn't enough memory. ID: -108" (see this post for details: https://community.adobe.com/t5/illustrator/can-t-copy-the-objects-there-isn-t-enough-memory-id-108/m...).

I'm assuming that the issue behind these error messages is the same, or at least related, as they both suddenly began happening at the same time.  I'm completely stumped and have reinstalled, restarted, removed preferences, etc. with no luck.  Any suggestions would be greatly appreciated.  Thank you!

[Barbara Ash]

You could try uninstall/reinstall using Adobe CC Cleaner Tool. It's not quite the same as a regular uninstall/reinstall. https://helpx.adobe.com/creative-cloud/kb/cc-cleaner-tool-installation-problems.html

[iiSanDiego]

So, I finally enlisted the help of an Adobe Tech who was able to access my computer remotely, remove all the versions of Illustrator I had in my system and then install a newer version (my system can't quite handle the most recent version).  Whatever the problems were that were causing the error messages I mentioned above, I still don't know.  But, removing all of the previous versions and intalling a newer version appears to have fixed everything.