Mondo App Freeze After Changing Contacts Photo

Since changing the photo for one of my friends who is also using Mondo, whenever I click on a transaction that has taken place between myself and her, the app crashes and I have to double click the home button and quit the app. The rest of the transactions are working fine, it’s just any payment that I have sent to her or that she has sent to me.

I have also restarted the phone since the picture change and this has not resolved the issue.

I’ve been able to change and update contact photos without any issues. Tried just now with 2 contacts and no issues.
iPhone 6s+, iOS 9.3.3 (13G21), Version 1.5 (235) of the application.