Adjust delete cached artwork

If fails, move on instead.

resources/lib/TextureCache.py

@@ -226,9 +226,11 @@ class TextureCache():
             thumbnails = xbmc.translatePath("special://thumbnails/%s" % cachedurl)
             self.logMsg("Deleting cached thumbnail: %s" % thumbnails, 1)
             xbmcvfs.delete(thumbnails)
-            
+            try:
                 cursor.execute("DELETE FROM texture WHERE url = ?", (url,))
                 connection.commit()
+            except:
+                self.logMsg("Issue deleting url from cache. Skipping.", 2)
         
         finally:
             cursor.close()