Two instances of Collabora for Nextcloud

Hello!

Could anyone give me some advices about my config, please?. I have Nextcloud working with Collabora running through docker. All is working ok with one instance, but now, I want run second instance of Collabora within one Nextcloud with other domain (other apache2 vhost).

Nextcloud config has two allowed domain:
-my1 domain com (apache2 vhost one)
-my2 domain com (apache2 vhost two)

In Nextcloud collabora url I set first domain - my1.domain.com

Working first instance collabora docker:
docker run -t -d -p 127.0.0.1:9980:9980 -e ‘domain=my1\.domain\.com’ --restart always --cap-add MKNOD collabora/code

Second not working instance Collabora docker:
docker run -t -d -p 127.0.0.1:9981:9980 -e ‘domain=my2\.domain\.com’ --restart always --cap-add MKNOD collabora/code

In ma vhost config I only changed port to 9981:

<VirtualHost *:443>
ServerAdmin email@email.com
ServerName my2domain com
DocumentRoot /var/www/mydomain
DirectoryIndex index.php index.html

    SSLEngine on
    SSLCertificateFile /etc/apache2/certificates/cert.crt
    SSLCertificateKeyFile /etc/apache2/certificates/key.key
    SSLCertificateChainFile /etc/apache2/certificates/ca.crt

    <FilesMatch "\.(cgi|shtml|phtml|php)$">
        SSLOptions +StdEnvVars
    </FilesMatch>

	<Directory /usr/lib/cgi-bin>
		SSLOptions +StdEnvVars
	</Directory>
    
    <Directory /var/www/mydomain>
        AllowOverride All
        Satisfy Any
    </Directory>
    
    # Włączenie FPM.
    <FilesMatch "\.php$">
        SetHandler "proxy:fcgi://127.0.0.1:9000/"
    </FilesMatch>
    
    <IfModule mod_headers.c>
        Header set Referrer-Policy "no-referrer"
        Header always set Strict-Transport-Security "max-age=15768000; includeSubDomains; preload"
    </IfModule>
    
     <IfModule mod_dav.c>
        Dav off
     </IfModule>
    
    
    
    #############
    # COLLABORA #
    #############
    
    SSLProtocol             all -SSLv2 -SSLv3
    SSLCipherSuite ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA:ECDHE-RSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-RSA-AES256-SHA256:DHE-RSA-AES256-SHA:ECDHE-ECDSA-DES-CBC3-SHA:ECDHE-RSA-DES-CBC3-SHA:EDH-RSA-DES-CBC3-SHA:AES128-GCM-SHA256:AES256-GCM-SHA384:AES128-SHA256:AES256-SHA256:AES128-SHA:AES256-SHA:DES-CBC3-SHA:!DSS
    SSLHonorCipherOrder     on
    
    # Encoded slashes need to be allowed
    AllowEncodedSlashes NoDecode

    # Container uses a unique non-signed certificate
    SSLProxyEngine On
    SSLProxyVerify None
    SSLProxyCheckPeerCN Off
    SSLProxyCheckPeerName Off

    # keep the host
    ProxyPreserveHost On

    # static html, js, images, etc. served from loolwsd
    # loleaflet is the client part of LibreOffice Online
    ProxyPass /loleaflet https://127.0.0.1:9981/loleaflet retry=0
    ProxyPassReverse /loleaflet https://127.0.0.1:9981/loleaflet

    # WOPI discovery URL
    ProxyPass /hosting/discovery https://127.0.0.1:9981/hosting/discovery retry=0
    ProxyPassReverse /hosting/discovery https://127.0.0.1:9981/hosting/discovery

    # Main websocket
    ProxyPassMatch "/lool/(.*)/ws$" wss://127.0.0.1:9981/lool/$1/ws nocanon

    # Admin Console websocket
    ProxyPass /lool/adminws wss://127.0.0.1:9981/lool/adminws

    # Download as, Fullscreen presentation and Image upload operations
    ProxyPass /lool https://127.0.0.1:9981/lool
    ProxyPassReverse /lool https://127.0.0.1:9981/lool
     
    ErrorLog /var/www/logs/error.log 
    CustomLog /var/www/logsl/access.log combined
</VirtualHost>

Now, when I go to Nextcloud by my2.domain.com is ok, but when I run Collabora in first instance of docker logs I have:

No acceptable WOPI hosts found matching the target host [my2.domain.com] in config.

Why is not this appealing to the second instance?