Update

src/routes/__layout.svelte

@@ -6,9 +6,10 @@
   import { page } from '$app/stores';
   import { userData, userDataLocal, apiStatus } from '$lib/stores';
   import { loadOrders, loadApiStatus } from '$lib/orders';
-  import { onMount } from 'svelte';
+  import { onMount, onDestroy } from 'svelte';
 
   let bundle = null
+  let uds = null
 
   onMount(async () => {
     bundle = await api.loadBundle($page.url.hostname === 'localhost')
@@ -18,7 +19,7 @@
       userData.set(JSON.parse(userDataLS))
     }
 
-    userData.subscribe(ud => {
+    uds = userData.subscribe(ud => {
       localStorage.setItem('userData', JSON.stringify(ud))
     })
 
@@ -26,6 +27,12 @@
     await loadOrders($userData)
   })
 
+  onDestroy(() => {
+    //userData.unsubscribe(uds)
+  })
+
+
+
   // load orders
 
 </script>

src/routes/vstupenky.svelte

@@ -245,10 +245,14 @@
 
   function removeOrder (id) {
     userData.update(ud => {
-      console.log('change', id)
+      console.log('change', ud.orders, id)
       let index = ud.orders.indexOf(id)
       if (index >= 0) {
-        ud.orders.splice(index, 1)
+        if (ud.orders.length === 1) {
+          ud.orders = []
+        } else {
+          ud.orders.splice(index, 1)
+        }
       }
       return ud
     })