Node doesn't work anymore

The node (made with python) you see in the image below doesn’t work anymore. He did work and in terms of versions / updates nothing has changed in the meantime.
Can someone help me with this?

There are null values in your list. You should clean them or add a conditional to your code.

use " try" “except” in your code to get rid of warnings

you can figure out what is causing the error using this code:

new_list = []
errors = []
for item in IN[0]
	try:
		new_list.append( datetime.datetime.strptime(item, "%d-%m-%Y") )
	except Exception as ex:
		errors.append([item, str(ex)])

OUT = new_list, errors

Like this?

@Jordy Indentation and Colon in Python is very important, when its multiple lines

https://docs.python.org/2.0/ref/indentation.html

Hi,
not properly. It missed some indents.
Try replacing this (from line 13 to 18):

new_list = []
errors = []
for item in IN[0]:
	try:
		new_list.append(datetime.datetime.strptime(item, "%d-%m-%Y"))
	except Exception as ex:
		errors.append([item, str(ex)])