Multiple bug fixing

client/pages/forms/[slug]/edit.vue

@@ -33,7 +33,9 @@ const error = ref(null)
 const formInitialHash = ref(null)
 
 function isDirty() {
-  return formInitialHash.value && updatedForm.value && formInitialHash.value !== hash(JSON.stringify(updatedForm.value.data() ?? null))
+  return formInitialHash.value &&
+    updatedForm.value &&
+    formInitialHash.value !== hash(JSON.stringify(updatedForm?.value?.data() ?? null))
 }
 
 function initUpdatedForm() {

client/pages/settings.vue

@@ -71,14 +71,14 @@
       }
     ]
 
-    if (user.value.is_subscribed) {
+    if (user?.value?.is_subscribed) {
       tabs.splice(1, 0, {
         name: 'Billing',
         route: 'settings-billing'
       })
     }
 
-    if (user.value.admin) {
+    if (user?.value?.admin) {
       tabs.push({
         name: 'Admin',
         route: 'settings-admin'