try to tweek sidebar

app/UI/VirtualNetwork/Pages/VirtualNetworkDataTable.php

@@ -53,11 +53,12 @@ class VirtualNetworkDataTable extends DataTable implements ClientArea
             $createButton->addClass("disabled");
         }
         //deaktivate createVM Button in case of lack of ressources
-/*        if($resurceManager->disk()->free() < $resurceManager->disk()->getMin() || $resurceManager->vcpus()->free() < $resurceManager->vcpus()->getMin() || $resurceManager->memory()->free() < $resurceManager->memory()->getMin()) {
-            $createButton->addClass("disabled");
+        if($resurceManager->disk()->free() < $resurceManager->disk()->getMin() || $resurceManager->vcpus()->free() < $resurceManager->vcpus()->getMin() || $resurceManager->memory()->free() < $resurceManager->memory()->getMin()) {
             //delete sidebar button
-            sl("sidebar")->getSidebar("Service Details Overview")->getChild("vmcreate")->delete();
-        }*/
+                if(sl("sidebar")->getSidebar("Service Details Overview")->isChild("vmcreate")) {
+                    sl("sidebar")->getSidebar("Service Details Overview")->getChild("vmcreate")->delete();
+                }
+        }
         //Create
         $this->addButton($createButton);
         //Update