Jessica,
Sorry for the delay in getting back to you. Thanks for all the screen shots.
It seems the problem you are having is due to the data files being in a folder that is different from where they were when you created the state file. That’s a common situation, and ParaView has a remedy for it.
When you load your state file through the File -> Load State… menu item, a dialog box will appear asking you where to look for data files. Set the “Load State Data File Options” option to “Search files under specified directory”, then change the “Data Directory” to “/Users/jessicablair/Desktop/Research2020/ConvertedResults/TESTFULL70Trial2…”, then click OK. The state file should load all your data files that you had as long as the names of the files haven’t changed (their directory changing is okay).