Samsung Contacts app crashing
The Contacts app on some Samsung phones is buggy.
If you view a conversation in 8sms, your own photo may not appear. Instead you will just see a general person icon. If you press on the icon, the phone may pause for a few seconds and then report that the Contacts app has stopped.
This is not a problem with 8sms. It is a bug in the Samsung Contacts app which causes the Contacts app to crash. Please ask Samsung for a bug fix and be very very patient.