I had a problem again with the contacts. i changed my address book from SIM to Telephone Memory and now contacts in Viber disappeared. The only way to fix it is to settle again the SIM memory in the address book.
Previously i copied all the contacts from SIM to Telephone. The only thing i changed is the image for each contact.
Is there a way to fix it? Because is very annoying, Viber doesn't work and also a blue message of error appears and the telephone crashes.
Thanks!