verifyMac failed ==> no valid sessions

[uponup]

ourMac != mac
This will result in the error of 「no valid sessions」。

Why should we make macVerify? What's means? I can't find any solutions at this error, please help me

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there are console logs:

ourMac:

• 0 : 194
• 1 : 9
• 2 : 155
• 3 : 187
• 4 : 211
• 5 : 6
• 6 : 171
• 7 : 188

mac:

• 0 : 155
• 1 : 106
• 2 : 123
• 3 : 114
• 4 : 126
• 5 : 218
• 6 : 64
• 7 : 161