@shozeb Here is the process to uninstall SAMSON :
delete : rm -rf ~/.local/share/OneAngstrom/
delete : rm -rf ~/OneAngstrom/
delete : rm -rf ~/Documents/OneAngstrom/
delete : rm -rf ~/.config/OneAngstrom/
delete : rm -rf ~/.config/NANO-D (if exists)
After that you may try to reinstall SAMSON as described in the documentation.
Don't hesitate to contact us again if the issue is not solved. Users are our priority.
Jocelyn