Redmi 6A mi account remove failed

Platform: XIAOMI
Selected model: REDMI 6A
Please, select one of the options for "Reset Mi Account" operation or press Ok to continue...
Go to "W-Fi Settings" and forget connected Wi-Fi network or perform Wipe Data from recovery
Connecting to server...
Checking smart card...
Username: ---------
Authorizing...
Checking balance...
Your balance: 20 credits.
Checking operation...
Operation successfully checked.
Sending device information...
Get credits, needed for current operation...
Your balance: 20 credits. Need: 15 credits.
Please, power phone OFF, press and hold "Vol+" button and connect USB cable.
Searching for a phone. Please wait...
Found phone on COM18
Detecting Chip Version...
HW Chip: MT6762: 0766.0000
HW Version: 8A00.CA00.0000.0000
Connecting...
Brom Version: 05
BootLoader Version: FE
Sending auth...
Sending Auth Data...
Target Config: 0x000000E7
Start Authentication...
Connecting to server..OK
Authorizing...OK
Initializing..OK
Calculating...
Operation was failed!
Performed by 1.7.7.2 Software version.
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Error Xiaomi Service is busy