On line 12, an error message is indicating that there is a problem with accessing the user "root" on the IP address "2a02:4780:bad:f00d::18" due to proxySQL, with the reason being a denial of access.

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This error message suggests that there may be issues with the authentication or authorization process for accessing the "root" user account on the specified IP address. It is possible that the proxySQL service is blocking access to this user for security reasons or due to a misconfiguration. It is recommended to review the proxySQL configuration and verify the authentication credentials for the "root" user to resolve this issue.