Error IS-0009 on my own Plugin to download..

I have the same problem too.
I’m the owner of Generic Game System , Generic Input System and Generic Movement System
But I can’t install my own plugins(Other client can do that.),
The error as following:
”Installed Failed. Could not load installation information. Please check if the installation has been removed or existed on an external drive. If the external drive containing the installation is disconnected - please plugin it back in the computer and restart the launcher. Uninstalling the product and installing it again could also resolve the issue.”

Error Code: IS-0009

I did the restarting and reinstalling, nothing helped.
@skfabby Hello, Could you take a look and forward this to dev team? Thanks!