Connecting the vcenter through Onevcenter CLI

While connecting my vcenter through onevcenter CLI i am getting the below error my nebula version is 5.6 and os RHEL 7.X but my username password is correct.

onevcenter hosts --vcenter w07vc001 --vuser X --vpass XYZ
Connecting to vCenter: w07vc001… Error: InvalidLogin: Cannot complete login due to an incorrect user name or password./
["/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/connection.rb:61:in parse_response'", "/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/connection.rb:90:incall’", “/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/basic_types.rb:211:in _call'", "/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/basic_types.rb:74:inblock (2 levels) in init’”, “/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/vim.rb:58:in block in connect'", "/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/vim.rb:43:intap’”, “/usr/lib/one/ruby/vendors/rbvmomi/lib/rbvmomi/vim.rb:43:in connect'", "/usr/lib/one/ruby/vcenter_driver/vi_client.rb:13:ininitialize’”, “/usr/lib/one/ruby/vcenter_driver/importer.rb:153:in new'", "/usr/lib/one/ruby/vcenter_driver/importer.rb:153:inimport_clusters’”, “/bin/onevcenter:201:in block (2 levels) in <main>'", "/usr/lib/one/ruby/cli/command_parser.rb:457:incall’”, “/usr/lib/one/ruby/cli/command_parser.rb:457:in run'", "/usr/lib/one/ruby/cli/command_parser.rb:84:ininitialize’”, “/bin/onevcenter:37:in new'", "/bin/onevcenter:37:in'”]