Crash fix

source/libublsettings-config.c

@@ -1194,7 +1194,7 @@ config_str yon_config_get_save_parameters_by_key(int *size, char *parameter,...)
 }
 
 config_str yon_config_get_save_parameters(int *size){
-
+    check_config{} else return NULL;
     (*size)=0;
     int removed_size=0;
     config_str removed = NULL;