This is obviously a WhatsApp issue, nothing to do with Smarty.
You probably need to uninstall WhatsApp and reinstall it
See below :
โ
If youโve given WhatsApp permission to access your deviceโs address book, WhatsApp will add any contacts with an account to your WhatsApp contacts list.
You can only restore lost contacts if youโve previously made a copy of them using your phoneโs features.
WhatsApp canโt restore your contacts for you.
Note: If you unblock a contact or phone number which wasnโt previously saved in your deviceโs address book, you wonโt be able to restore it to your device.โ
