Transaction wait for receipt loop

[hungtrungthinh]

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4. See error

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Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
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[valamidev]

It is not an error, it is a verbose logging for transaction tracking.