you need to execute these commands inside the quickstatements docker container (e.g. from terminal:  

`docker exec -it wikibase-docker_quickstatements_1 /bin/bash`

) or replace the file using local file mapping in the `docker-compose.yml` recipe

1. comment out the `require_once` line in the `/var/www/html/magnustools/public_html/php/wikidata.php` for example, using sed : 

`sed -i 's/require_once/\/\/require_once/' /var/www/html/magnustools/public_html/php/wikidata.php`

2. replace 'api.php' into 'oob' in `/var/www/html/quickstatements/public_html/api.php` : 

`sed -i 's/api.php/oob/' /var/www/html/quickstatements/public_html/api.php`