Let's encrypt 遇到 'ascii' codec can't decode byte 0xe5 的解法

Let's encrpyt在更新续期的时候，遇到下面错误的信息：

Attempting to renew cert (shiro.weiyuanzhuo.cc) from /etc/letsencrypt/renewal/shiro.weiyuanzhuo.cc.conf produced an unexpected error: 'ascii' codec can't decode byte 0xe8 in position 2: ordinal not in range(128). Skipping.
All renewal attempts failed. The following certs could not be renewed:
  /etc/letsencrypt/live/shiro.weiyuanzhuo.cc/fullchain.pem (failure)

要怎么解决如何？

我在看到有关一篇UnicodeDecodeError: 'ascii' codec can't decode byte 0xe7 in position 2: ordinal not in range(128)，但是解决方法一样的。

使用以下命令：

grep -r -P '[^\x00-\x7f]' /etc/apache2 /etc/letsencrypt /etc/nginx

发现问题：

/etc/nginx/conf.d/shiro.conf:   # 解决 413 Request Entity Too Large
/etc/nginx/nginx.conf:    worker_connections  10240; # 并发十几倍提高快

刪除这些编号，在重新执行 Let's encrypt script 就可以通过啦~