Safety logic check, don't try to stop a stopped server when suspendin…

…g; closes #2318

Couldn't actually reproduce this, but a good sanity check I guess.

server/update.go

@@ -143,12 +143,14 @@ func (s *Server) SyncWithEnvironment() {
 	} else {
 		// Checks if the server is now in a suspended state. If so and a server process is currently running it
 		// will be gracefully stopped (and terminated if it refuses to stop).
-		s.Log().Info("server suspended with running process state, terminating now")
-
-		go func(s *Server) {
-			if err := s.Environment.WaitForStop(60, true); err != nil {
-				s.Log().WithField("error", err).Warn("failed to terminate server environment after suspension")
-			}
-		}(s)
+		if s.GetState() != environment.ProcessOfflineState {
+			s.Log().Info("server suspended with running process state, terminating now")
+
+			go func(s *Server) {
+				if err := s.Environment.WaitForStop(60, true); err != nil {
+					s.Log().WithField("error", err).Warn("failed to terminate server environment after suspension")
+				}
+			}(s)
+		}
 	}
 }