Location settings for Collabora online and Update Nginx

[appsmj]

Hello,
i have Nextcloud runing on an Proxmox. Nextcloud runns behind an EnginX Proxy. Ich have installed NextcloudOffice and the Collabora Online server. I have to add the following locations settings:

location ~ ^\/nextcloud\/(?:index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy)\.php(?:$|\/) {

In where i have to paste it?

And i have the message that there ist an update to install. How can i do this?

I hope someone can help me.

Thanks
Marc