I have a local file I am working on that I am sharing peer-to-peer during development. I have been able to do this without a problem for almost a month now. Then, this morning I opened the file and got the error message shown in the attached picture. I have quit and restarted both versions of FileMaker that I use (Pro 15.0.2 and Pro Advanced 15.0.2). I tried restarting the computer, but all to no avail. Any help would be great!
Also, I am trying to host this file using Pro Advanced 15.0.2, on a Mac running OS X 10.11 El Capitan.