diff --git a/src/components/new-submission/cz.new-submission.vue b/src/components/new-submission/cz.new-submission.vue
index bf376a7..c433eab 100644
--- a/src/components/new-submission/cz.new-submission.vue
+++ b/src/components/new-submission/cz.new-submission.vue
@@ -214,7 +214,7 @@
     >
       <v-card class="py-4" color="primary" dark>
         <v-card-text>
-          <p id="new-submission-saving" class="mb-2 text-center">
+          <p id="new-submission-saving" class="mb-4 text-center text-body-2">
             Saving...
           </p>
           <v-progress-linear
diff --git a/src/components/register-dataset/cz.register-dataset.vue b/src/components/register-dataset/cz.register-dataset.vue
index ec57c9c..78e42db 100644
--- a/src/components/register-dataset/cz.register-dataset.vue
+++ b/src/components/register-dataset/cz.register-dataset.vue
@@ -375,8 +375,7 @@
 
                 <v-btn
                   v-else
-                  color="primary"
-                  class="mr-4"
+                  class="mr-4 bg-primary"
                   :disabled="isFetching || !isValid || !url"
                   @click="goToEditSubmission"
                 >
@@ -559,7 +558,7 @@ class CzRegisterDataset extends mixins(ActiveRepositoryMixin) {
           this.selectedRepository.key,
         )
 
-        if (response && Number.isNaN(response)) {
+        if (response && isNaN(response)) {
           this.submission = Submission.getInsertData(
             response.metadata,
             this.selectedRepository.key,
diff --git a/src/models/repository.model.ts b/src/models/repository.model.ts
index ee2d252..859d791 100644
--- a/src/models/repository.model.ts
+++ b/src/models/repository.model.ts
@@ -145,7 +145,7 @@ export default class Repository extends Model implements IRepository {
     callback?: () => any,
   ) {
     const handleMessage = async (event: MessageEvent) => {
-      if (event.origin !== APP_URL || !Object.prototype.hasOwnProperty.call(!event.data, 'token'))
+      if (event.origin !== APP_URL || !Object.prototype.hasOwnProperty.call(event.data, 'token'))
         return
 
       if (activeRepository && event.data?.token) {