iPhone Zoho App

iPhone Zoho App

In creating a Zoho CRM contact, I would like to import my iPhone contact. I choose the appropriate flow "+" then "Import from Address Book" and it allows me access to my contacts list. If I choose certain contacts, the whole app just crashes... I have Zoho App v2.4.3 on iOS 9.2. 
It appears that if these contacts are updated from fields pulled from iOS mail, they are more likely to crash. Is this a data format failure?

Please advise...