Hi VanessaBQ and welcome to our community
Basically, MergeThis is saying you need to move that project
OFF your network! Projects stored on networks and worked in this
manner are a constant source of posts here. When we suggest moving
the projects so they are only edited on a local C drive, we are
often met with strong resistance. Often, folks will scoff and say
that cannot possibly be the cause. I've used the project in this
manner for (insert assorted time increment here).
And yet, the fact remains that they are here asking why
something weird is happening with their project.
Cheers... Rick