diff --git a/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.html b/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.html
index 9e60ee4c58b3b97e668f511af26dfa6afef19270..4e103de0b2a785623baf7e8081165b046e789229 100644
--- a/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.html
+++ b/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.html
@@ -14,7 +14,7 @@
             <div style="margin-bottom: 10px">
                 {{ 'APPS_MANAGEMENT.ADD_JSON_TEXTAREA'| translate}}
             </div>
-            <textarea rows="10" cols="100" pInputTextarea [(ngModel)]="jsonText" (keyup)="this.JsonError = false"></textarea>
+            <textarea rows="10" cols="100" pInputTextarea [(ngModel)]="jsonText" (keyup)="this.JsonError = false; this.error = ''"></textarea>
         </div>
         <div class="flex flex-row justify-content-center justify-content-center mt-2">
             <button *ngIf="jsonText.length >0" pButton class="btn btn-success"
diff --git a/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.ts b/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.ts
index 62638c292ab2e1df41073e8aa0f606e036379548..72a926ff40e141030bd298b5c5253dc280b2ca99 100644
--- a/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.ts
+++ b/src/app/appmarket/appmanagement/app-add-json-app/app-add-json-app.component.ts
@@ -44,7 +44,11 @@ export class AppAddJsonAppComponent implements OnInit {
                         },
                         error => {
                             console.log(error)
-                            this.error = error.message
+                            if (error.message === null) {
+                                this.JsonError = true;
+                            } else {
+                                this.error = error.message
+                            }
                         })
                 } catch (e) {
                     console.warn('invalid json')
@@ -68,7 +72,11 @@ export class AppAddJsonAppComponent implements OnInit {
                     },
                     error => {
                         console.log(error)
-                        this.error = error.message
+                        if (error.message === null) {
+                            this.JsonError = true;
+                        } else {
+                            this.error = error.message
+                        }
                     })
             } catch (e) {
                 console.warn('invalid json')
diff --git a/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.html b/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.html
index ca1889da3b63b88290cd60d4fffe655f1c572a08..7b228696a1610a3f2de818942a34ec135aca945a 100644
--- a/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.html
+++ b/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.html
@@ -14,7 +14,7 @@
             <div style="margin-bottom: 10px">
                 {{ 'APPS_MANAGEMENT.ADD_JSON_TEXTAREA'| translate}}
             </div>
-            <textarea rows="10" cols="100" pInputTextarea [(ngModel)]="jsonText" (keyup)="this.JsonError = false"></textarea>
+            <textarea rows="10" cols="100" pInputTextarea [(ngModel)]="jsonText" (keyup)="this.JsonError = false; this.error = ''"></textarea>
         </div>
         <div class="flex flex-row justify-content-center justify-content-center mt-2">
             <button *ngIf="jsonText.length >0" pButton class="btn btn-success"
diff --git a/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.ts b/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.ts
index 54532ee89bd6fdb61eea4d0016e933f79c40d422..f91cffb80728c3530d6f108cf04ebe0c4593a377 100644
--- a/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.ts
+++ b/src/app/appmarket/appmanagement/app-add-json-version-app/app-add-json-version-app.component.ts
@@ -48,7 +48,11 @@ export class AppAddJsonVersionAppComponent implements OnInit {
               },
               error => {
                 console.log(error)
-                this.error = error.error.message
+                if (error.message === null) {
+                  this.JsonError = true;
+                } else {
+                  this.error = error.message
+                }
               })
         } catch (e) {
           console.warn('invalid json')
@@ -72,7 +76,11 @@ export class AppAddJsonVersionAppComponent implements OnInit {
             },
             error => {
               console.log(error)
-              this.error = error.error.message
+              if (error.message === null) {
+                this.JsonError = true;
+              } else {
+                this.error = error.message
+              }
             })
       } catch (e) {
         console.warn('invalid json')