Added fix in config sso for bookstack plus

lib/bookstack.sh

@@ -201,6 +201,7 @@ uninstall_bookstack() {
   echo -ne "done.\n"
 }
 configsso_bookstack() {
+  if [[ "${PLUS}" != "true" ]]; then
   echo -ne "* Configuring bookstack container with SSO.."
 
   [ ! -d "/federated/apps/authelia" ] && failcheck "Authelia is not installed. You need this first before continuing."
@@ -259,6 +260,7 @@ EOF
   run_command "/federated/bin/start bookstack"
 
   echo -ne "done.\n"
+  fi
 }
 configsso_bookstack_plus() {
   GITEA_CLIENT_SECRET=$(cat /federated/apps/bookstack/.bookstack.client.secret)