I installed the program "LAN Messenger" from a deb file.
When starting the program I get an error message. I did installed
tanmn2@TanMN2:~/Downloads$ lmc This is not a Canonical "designed" product. Unable to load library icui18n "Cannot load library icui18n: (libicui18n.so.48: wrong ELF class: ELFCLASS64)" QGtkStyle was unable to detect the current GTK+ theme.
How should I proceed?