解决方法:
查看git配置文件有无代理
git config --global http.proxy
git config --global https.proxy
若有返回值,则重置代理
git config --global --unset http.proxy
git config --global --unset https.proxy
fatal: unable to access 'https://github.com/zhensolid/QuantumultX_Own.git/': Failed to connect to 127.0.0.1 port 31181: Connection refused