in_array() expects at least 2 parameters, 1 given about integration_whiteboard

[tainnok]

running into the same problem.
fresh install of nextcloud 21 using docker.
only additional installed apps (using the nextcloud-UI):

• Whiteboard integration version: 0.0.14
• Splash version: 1.2.2

docker-compose.yml to start nextcloud

i used the template from the nextcloud-docker-example
you should be able to reproduce the error using this docker-compose.yml and installing the whiteboard-integration after startup.

version: '3'

services:
  db:
    image: mariadb
    restart: always
    command: --transaction-isolation=READ-COMMITTED --binlog-format=ROW
    volumes:
      - ./volumes/db:/var/lib/mysql
    environment:
      - MYSQL_ROOT_PASSWORD='MYSQL_ROOT_PW'
      - MYSQL_PASSWORD='MYSQL_PW'
      - MYSQL_DATABASE=nextcloud
      - MYSQL_USER=nextcloud

  nextcloud:
    image: nextcloud
    restart: always
    ports:
      - 8080:80
    links:
      - db
    volumes:
      - ./volumes/nextcloud:/var/www/html
    environment:
      - MYSQL_PASSWORD='MYSQL_PW'
      - MYSQL_DATABASE=nextcloud
      - MYSQL_USER=nextcloud
      - MYSQL_HOST=db

changes in my environment:
i use traefik as reverse-proxy, redirect http to https and use letsencrypt.
so in my config i removed the ports section an add the following lables for traefik (the domain-name is a environment set outside of the docker-compose.yml)

labels:
      - traefik.enable=true
      - traefik.http.routers.nextcloud.rule=Host(`$NEXTCLOUD_DOMAINNAME`)
      - traefik.http.routers.nextcloud.tls.certresolver=le
      - traefik.http.services.nextcloud.loadbalancer.server.port=80

Errormessage

Serverinfo in json-format

created by https://<my-nextcloud.example.com>/ocs/v2.php/apps/serverinfo/api/v1/info?format=json
info.json.log

[tainnok]

just a guess (as i am no php-developer, and i also do NOT plan to become one):
SpacedeckAPIService.php:398 should be modified as followed?:

398c398
<                               if (!in_array($wbFile->getId())) {
---
>                               if (!in_array($wbFile->getId(), $fileIds)) {