Improve output

Author: bouwew

plugwise/helper.py

@@ -78,7 +78,8 @@ def _find(xml_in: etree, locator: str) -> etree:
     if xml_in is not None:
         return xml_in.find(locator)
 
-    raise XMLDataMissingError()
+    LOGGER.error("XML data unexpectedly not found, processing stopped!")
+    raise XMLDataMissingError
 
 
 def update_helper(