1 files changed, 1 insertions, 1 deletions
diff --git a/merchant-terminal/src/main/java/net/taler/merchantpos/order/Order.kt b/merchant-terminal/src/main/java/net/taler/merchantpos/order/Order.kt
index 2d4d32c..a22ab0a 100644
--- a/merchant-terminal/src/main/java/net/taler/merchantpos/order/Order.kt
+++ b/merchant-terminal/src/main/java/net/taler/merchantpos/order/Order.kt
@@ -73,7 +73,7 @@ data class Order(val id: Int, val currency: String, val availableCategories: Map
         val categories = HashMap<Category, Int>()
         products.forEach { product ->
             val categoryId = product.categories[0]
-            val category = availableCategories.getValue(categoryId)
+            val category = availableCategories[categoryId] ?: return@forEach // custom products
             val oldQuantity = categories[category] ?: 0
             categories[category] = oldQuantity + product.quantity
         }