how to sync between master and sync ?

[shyding]

Describe the bug
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To Reproduce
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2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior
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Screenshots
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Mango Version (please complete the following information):

• Core Version: [e.g. 3.5.6]
• Module Version [e.g. 3.5.10]

Browser (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Name [e.g. chrome, safari]
• Version [e.g. 22]

Additional context
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ma.log Snippet

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Browser console errors

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Minimal code example to reproduce

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