Unable to connect to Github repository

[abubakarmkarajagi]

Please refer the below error. I tired in two versions of scm one is 6.0.6.1 when it didn't work got know in one of the issue solution that repository issue is resolved after downgrading RTC client to 6.0.4 .I can still see the error. Please assist.

C:\Users\E99XXX>scm --version
Build Id: RTC-CLIENT-I20170517-1025
Version: 6.0.4

C:\Users\E99XXX>cd C:\CC_GIT_migration\RTC_GIT_Initlaization

C:\CC_GIT_migration\RTC_GIT_Initlaization>scm load -r https://abubakarmkarajagi:[email protected]/DXXXXXXX/ClearCase.git C:\IBM_RTC_GIT\Target_WS
Password (E9XXX @ https://abubakarmkarajagi:[email protected]/DXXXXXXX/ClearCase.git): ghp_aq1Sh5YbV3srVNVxgeAOZ506noas3S3nO8a
Problem running 'load':
Could not log in to https://abubakarmkarajagi:[email protected]/DXXXXXXX/ClearCase.git as user E9XXX: CRJAZ2382E Cannot connect to the repository at URL "https://abubakarmkarajagi:[email protected]/DXXXXXXX/ClearCase.git". This can happen if you have supplied an incorrect URI or if the server is down. Try logout and re-login with the updated credentials if the password has been changed.
CRJAZ2382E Cannot connect to the repository at URL "https://abubakarmkarajagi:[email protected]/DXXXXXXX/ClearCase.git". This can happen if you have supplied an incorrect URI or if the server is down.
Check the log for details about the error at "C:\Users\E9XXX\AppData\Local\jazz-scm". If you have configured custom logging check your log configuration settings for the path to the log file.

C:\CC_GIT_migration\RTC_GIT_Initlaization>scm load -r https://github.com/XXXXXX/ClearCase.git -u abubakarmkarajagi C:\IBM_RTC_GIT\Target_WS
Password (abubakarmkarajagi @ https://github.com/XXXXXX/ClearCase.git):
Problem running 'load':
Could not log in to https://github.com/XXXXXX/ClearCase.git as user abubakarmkarajagi: CRJAZ2382E Cannot connect to the repository at URL "https://github.com/XXXXXX/ClearCase.git". This can happen if you have supplied an incorrect URI or if the server is down. Try logout and re-login with the updated credentials if the password has been changed.
CRJAZ2382E Cannot connect to the repository at URL "https://github.com/XXXXXX/ClearCase.git". This can happen if you have supplied an incorrect URI or if the server is down.
Check the log for details about the error at "C:\Users\E9XXX\AppData\Local\jazz-scm". If you have configured custom logging check your log configuration settings for the path to the log file.

C:\CC_GIT_migration\RTC_GIT_Initlaization>

[abubakarmkarajagi]

Still I am not able to initialize github repository, I manually cloned repo in TARGETWORK_SAPCE and try to run actual migration command ,it is giving me error Unknown subcommand "migrate-to-git" .When I searched for migrate-to-git command .In the plugin.xml file I was able to find this command but in that it is mentioned eclipse version 3.4.I didn't find this version at Jazz vendor(IBM).Please assist how to proceed ?