Please tell us some basic information before asking for help:
Model Name: Asus ROG5
Firmware Version: 31.0810.1226.91
Rooted or not: Not
Frequency of Occurrence: 100%
APP Name & APP Version (If your issue relates to the app): WhatsApp Twin app. Latest version
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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I am using whatsapp twin app created with clone app features of the phone. The app is not fetching contact from the phone neither allowing me to take backup. I am stuck with it now.