Install idn2 by entering the following commands in the terminal:
sudo apt update sudo apt install idn2
Description:
Internationalized domain names (IDNA2008/TR46) command line tool
Libidn2 implements the revised algorithm for internationalized domain names called IDNA2008/TR46. . This package contains the idn2 command-line tool.
Homepage: https://www.gnu.org/software/libidn/#libidn2
Version: 2.0.4-1.1build2
Section: universe/devel