Error: Cannot use object of type stdClass as array

• /srv/code/openfun.app/lawtrace/libraries/PolicyHelper.php:142
• /srv/code/openfun.app/lawtrace/libraries/DiffHelper.php:501
• /srv/code/openfun.app/lawtrace/controllers/LawController.php:260
• /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