Can't update ubuntu - Error: Can't open /dev/fd/63

I wanted to update cyberpanel with the following command

sh <(curl || wget -O -

I get an error: Can't open /dev/fd/63

I google it the error but I didn’t find a good fix…
Any help ?

use sudo su - first

and than

sh <(curl || wget -O -


Thank you! :slight_smile:

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