How to install LAMP and secure Apache with Let's Encrypt

I followed the two guides https://www.digitalocean.com/community/tutorials/how-to-install-linux-apache-mysql-php-lamp-stack-on-ubuntu-20-04 and https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-ubuntu-20-04. My site was up and running on my remote server, and I got php to connect to my mysql db without errors. Then I followed the second guide to enable ssl and https on my site. Everything worked well, and I installed the Let’s Encrypt certificate. The only thing that didn’t work was the last test: “Try reloading your website using https:// and notice your browser’s security indicator.”…

Unfortunately I can’t load my website at all any longer, not with http nor https. The only thing I get from the browser is: “This site can’t be reached spiked.no took too long to respond.” and https://www.ssllabs.com/ssltest/analyze.html?d=spiked.no say “Assessment failed: Unable to connect to the server”.

I know that my LAMP worked without errors before I installed the Let’s Encrypt certificate and enabled ssl, but I don’t know where to search for errors. Anyone else having the same issue?

I’m using Ubuntu 20.04.3 LTS

$ sudo apache2ctl configtest
Syntax OK

In /etc/apache2/sites-enabled I’ve got the two following files:

spiked-le-ssl.conf -> /etc/apache2/sites-available/spiked-le-ssl.conf
spiked.conf -> ../sites-available/spiked.conf

$ cat spiked-le-ssl.conf
<IfModule mod_ssl.c>
<VirtualHost *:443>
    ServerName spiked.no
    ServerAlias www.spiked.no
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined

Include /etc/letsencrypt/options-ssl-apache.conf
SSLCertificateFile /etc/letsencrypt/live/spiked.no/fullchain.pem
SSLCertificateKeyFile /etc/letsencrypt/live/spiked.no/privkey.pem
</VirtualHost>
</IfModule>

$ cat spiked.conf
<VirtualHost *:80>
    ServerName spiked.no
    ServerAlias www.spiked.no
    ServerAdmin webmaster@localhost
    DocumentRoot /var/www/html
    ErrorLog ${APACHE_LOG_DIR}/error.log
    CustomLog ${APACHE_LOG_DIR}/access.log combined
RewriteEngine on
RewriteCond %{SERVER_NAME} =spiked.no [OR]
RewriteCond %{SERVER_NAME} =www.spiked.no
RewriteRule ^ https://%{SERVER_NAME}%{REQUEST_URI} [END,NE,R=permanent]
</VirtualHost>

$ sudo ufw status
Status: active

To                         Action      From
--                         ------      ----
Apache Full                ALLOW       Anywhere
OpenSSH                    ALLOW       Anywhere
Apache Full (v6)           ALLOW       Anywhere (v6)
OpenSSH (v6)               ALLOW       Anywhere (v6)

$ sudo apachectl -M
Loaded Modules:
 core_module (static)
 so_module (static)
 watchdog_module (static)
 http_module (static)
 log_config_module (static)
 logio_module (static)
 version_module (static)
 unixd_module (static)
 access_compat_module (shared)
 alias_module (shared)
 auth_basic_module (shared)
 authn_core_module (shared)
 authn_file_module (shared)
 authz_core_module (shared)
 authz_host_module (shared)
 authz_user_module (shared)
 autoindex_module (shared)
 deflate_module (shared)
 dir_module (shared)
 env_module (shared)
 filter_module (shared)
 mime_module (shared)
 mpm_prefork_module (shared)
 negotiation_module (shared)
 php7_module (shared)
 reqtimeout_module (shared)
 rewrite_module (shared)
 setenvif_module (shared)
 socache_shmcb_module (shared)
 ssl_module (shared)
 status_module (shared)

There is something I did wrong, but I cannot see what it is…