我用nginx配置https， 我的配置文件语法检查时对的， 但是就是我打入域名的时候不生效， 应该查什么？

我同时配置了两个域名，一个时http的， 一个时https的， http的生效的但是https的没有生效。 报错内容时说端口被占用

2020/03/30 11:26:00 [emerg] 16840#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/03/30 11:26:00 [emerg] 16840#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/03/30 11:26:00 [emerg] 16840#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/03/30 11:26:00 [emerg] 16840#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/03/30 11:26:00 [emerg] 16840#0: bind() to 0.0.0.0:80 failed (98: Address already in use)
2020/03/30 11:26:00 [emerg] 16840#0: still could not bind()