testing, solved unhandled exception, conditions to restrict old message to be edited, license un some files that used to miss them

core/networkaccess.cpp

@@ -443,7 +443,7 @@ QString Core::NetworkAccess::getFileRemoteUrl(const QString& path)
     try {
         p = storage.getUrl(p);
     } catch (const Archive::NotFound& err) {
-        
+        p = "";
     } catch (...) {
         throw;
     }