Error: array_filter(): Argument #1 ($array) must be of type array, null given

• /srv/code/openfun.app/lawtrace/libraries/LawVersionHelper.php:234
• /srv/code/openfun.app/lawtrace/libraries/LawVersionHelper.php:234
• /srv/code/openfun.app/lawtrace/controllers/LawController.php:46
• /srv/code/openfun.app/lawtrace/mini-engine.php:285
• /srv/code/openfun.app/lawtrace/mini-engine.php:249
• /srv/code/openfun.app/lawtrace/index.php:4