Restore package name (com.ngaythuong)

[Tran Duc Nam]

Dear appyet.com, your service is very good I thank you for having such good product that helps me amateur developer can make their own product. There is a problem you need help, I accidentally deleted the package name: com.ngaythuong. Now I do not know how to restore it, I look forward to your help, if you respond soon to me.
Finally, I thank you!
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Tran Duc Nam
Email: tdnspt@gmail.com