hammer ping throws an 'ArgumentError' in Red Hat Satellite 6.11.z

Issue

• Executing the "hammer ping" command displays the error message below

  # hammer ping
  Traceback (most recent call last):
      13: from /bin/hammer:23:in `<main>'
      12: from /bin/hammer:23:in `load'
      11: from /opt/theforeman/tfm/root/usr/share/gems/gems/hammer_cli-3.1.0.1/bin/hammer:124:in `<top (required)>'
      10: from /opt/rh/rh-ruby27/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'
       9: from /opt/rh/rh-ruby27/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'
       8: from /opt/theforeman/tfm/root/usr/share/gems/gems/hammer_cli-3.1.0.1/lib/hammer_cli.rb:16:in `<top (required)>'
       7: from /opt/rh/rh-ruby27/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'
       6: from /opt/rh/rh-ruby27/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'
       5: from /opt/theforeman/tfm/root/usr/share/gems/gems/hammer_cli-3.1.0.1/lib/hammer_cli/abstract.rb:9:in `<top (required)>'
       4: from /opt/rh/rh-ruby27/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'
       3: from /opt/rh/rh-ruby27/root/usr/share/rubygems/rubygems/core_ext/kernel_require.rb:83:in `require'
       2: from /opt/theforeman/tfm/root/usr/share/gems/gems/hammer_cli-3.1.0.1/lib/hammer_cli/clamp.rb:8:in `<top (required)>'
       1: from /opt/theforeman/tfm/root/usr/share/gems/gems/fast_gettext-1.4.1/lib/fast_gettext/vendor/string.rb:70:in `%'
  /opt/theforeman/tfm/root/usr/share/gems/gems/fast_gettext-1.4.1/lib/fast_gettext/vendor/string.rb:70:in `%': named{file} after unnumbered(1) (ArgumentError)