Error Handling needs a cast to str

[JohnOmernik]

solaredge/semonitor.py

Line 65 in bfbb525

logger.info("Failed to parse message: "+ex)

logger.info("Failed to parse message: "+ex)

TypeError: cannot concatenate 'str' and 'error' objects

We probably need to force ex to it's str representation str(ex) perhaps? (I am not super sure on error handling. )

[jbuehl]

That was broken. It is fixed.