git clone error

[cocoajin]

sudo git clone --recursive https://github.com/lemon4ex/EasyDev.git /opt/EasyDev

remote: Total 1182 (delta 102), reused 110 (delta 46), pack-reused 996 (from 1)
Receiving objects: 100% (1182/1182), 51.31 MiB | 456.00 KiB/s, done.
Resolving deltas: 100% (644/644), done.
Submodule 'tools/LLDB' (git@github.com:lemon4ex/LLDB.git) registered for path 'tools/LLDB'
Submodule 'tools/bagbak' (git@github.com:ChiChou/bagbak.git) registered for path 'tools/bagbak'
Submodule 'tools/frida-ios-dump' (git@github.com:AloneMonkey/frida-ios-dump.git) registered for path 'tools/frida-ios-dump'
Submodule 'tools/xia0LLDB' (git@github.com:4ch12dy/xia0LLDB.git) registered for path 'tools/xia0LLDB'
Cloning into '/opt/EasyDev/tools/LLDB'...
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.
fatal: clone of 'git@github.com:lemon4ex/LLDB.git' into submodule path '/opt/EasyDev/tools/LLDB' failed
Failed to clone 'tools/LLDB'. Retry scheduled
Cloning into '/opt/EasyDev/tools/bagbak'...
git@github.com: Permission denied (publickey).
fatal: Could not read from remote repository.

please help, thanks.