Teamcity set up https with .pem certificate

I use certbot to generate "let's encrypt" sll certificate.
I tried to turn on https, but it does not work. I just can't connect. Http works when I use same port.
I only change conf/server.xml file:
```
     <Connector port="<port>" protocol="org.apache.coyote.http11.Http11NioProtocol"
             SSLEnabled="true"
             scheme="https"
             secure="true"
             connectionTimeout="60000"
             redirectPort="8543"
             clientAuth="false"
             sslProtocol="TLS"
             useBodyEncodingForURI="true"
             tcpNoDelay="1"

             SSLCertificateFile="/etc/letsencrypt/live/<website>/cert.pem"
             SSLCertificateKeyFile="/etc/letsencrypt/live/<website>/privkey.pem"
             SSLCertificateChainFile="/etc/letsencrypt/live/<website>/chain.pem"
        />
```
What I do wrong?
debian 8, Version 10.0.5 (build 42677)