Hello 
,
I am not sure I understand your issue properly but from the error message above it seems the Email 365 module fails because of the missing email address Google Sheets(?)
I would then recommend ensuring the address exists and/or adding an extra condition to your filter to ensure to stop the scenario flow in case the address does not exist.
In case the above is not the real issue of your scenario, feel free to provide more details about your scenario and the error(s) you encounter.
I will be glad to help
Cheerio 