Sudo apt-get update 403

the following problems occurred when installing docker
according to the docker document
refer
https://docs.docker.com/insta.

http://ppa.launchpad.net/gusb. bionic InRelease
403 Forbidden [ IP: 91.189.95.8380]

system ubuntu 18.04
Why does 403 appear?
how to solve this problem?

Apr.01,2021

all right, I'll answer

deleted the source of the error file.
rm-rf / etc/apt/source.list.d/gusbemacbe*
sudo apt-get update has no errors
download docker by downloading the installation package on the docker official website

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