MySQL Error 3021 – ER_SLAVE_CHANNEL_IO_THREAD_MUST_STOP

MySQL Error Message

This operation cannot be performed with a running slave
io thread; run STOP SLAVE IO_THREAD FOR CHANNEL ‘%s’ first.

Reason for the Error

ER_SLAVE_CHANNEL_IO_THREAD_MUST_STOP
was removed after 8.0.32.

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