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

[mihai_icey]

hello,
I wanted to update cyberpanel with the following command

sh <(curl https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh || wget -O - https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh)

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 ?

[syedfarhanali]

use sudo su - first

and than

sh <(curl https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh || wget -O - https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/preUpgrade.sh)

[mihai_icey]

Thank you!