Error: count(): Argument #1 ($value) must be of type Countable|array, null given

• /srv/code/openfun.app/budgetdata/controllers/BudgetProposalController.php:98
• /srv/code/openfun.app/budgetdata/controllers/BudgetProposalController.php:33
• /srv/code/openfun.app/budgetdata/mini-engine.php:290
• /srv/code/openfun.app/budgetdata/mini-engine.php:254
• /srv/code/openfun.app/budgetdata/index.php:4