Proxying in apache2 does not work how to fix it?

Question

Apache HTTP Server

Good afternoon. There is an ubuntu server, there is an apache. There is a site, I'll call it mysite.com here.
I'm trying to ensure that when the page https://mysite.com/test is requested, the page https://mysite.com:3000/test is returned . I do this next. way: In the file /etc/apache2/sites-enabled/mysite_com.conf I write the following directives:

<VirtualHost *:443>

  DocumentRoot /var/www/www-root/data/www/mysite.com
  ServerName mysite.com

  SSLEngine on
  #SSLProxyEngine On // эту опцию и включал и выключал -- результат тот же
  ProxyRequests Off
  ProxyPreserveHost On
  RewriteEngine On
  
  SSLCertificateFile  /var/www/www-root/data/www/ssl/mysite_com.crt
  SSLCertificateKeyFile	 /var/www/www-root/data/www/ssl/privatekey.key
  SSLCertificateChainFile  /var/www/www-root/data/www/ssl/mysite_com.ca-bundle
      
  ProxyPass  /test https://mysite.com:3000/test
  ProxyPassReverse  /test https://mysite.com:3000/test
  
</VirtualHost>

I restart Apache, I go to https://mysite.com/test , I get a 404 error, while https://mysite.com:3000/test works
, i.e. Proxification doesn't work. Error.log is silent. What could it be and how to deal with it?

Answer 1

and what prevents you from proxying through php proxy so that the script on the git of only 30 lines
works fine and does not require crutches in Apache?