[TVCharts] Fix possible bluescreen introduced with last commit.

.toString() is not available when no service is running.

diff --git a/tvcharts/src/plugin.py b/tvcharts/src/plugin.py
index a58c7be..1fc31f0 100644 (file)
--- a/tvcharts/src/plugin.py
+++ b/tvcharts/src/plugin.py
@@ -497,8 +497,9 @@ class DBUpdateStatus(Screen):
                        return
 
                # Get Channelname
-               ref = eServiceReference(self.session.nav.getCurrentlyPlayingServiceReference().toString())
-               if ref is not None:
+               sref = self.session.nav.getCurrentlyPlayingServiceReference()
+               if sref is not None:
+                       ref = eServiceReference(sref.toString())
                        ref.setName("")
                        serviceHandler = eServiceCenter.getInstance()
                        info = serviceHandler.info(ref)