fix

apps/nextcloud/application.tf

@@ -12,6 +12,7 @@ data "authentik_group" "readed_groups" {
 resource "authentik_application" "prj_app" {
   name              = "${var.component}"
   slug              = "${var.component}-${var.instance}"
+  protocol_provider = authentik_provider_oauth2.oauth2.id
   meta_launch_url   = format("https://%s.%s", var.sub-domain, var.domain-name)
   meta_icon         = format("https://%s.%s/%s", var.sub-domain, var.domain-name, "apps/theming/favicon")
 }