try to reenable vmcreate after delete action

app/UI/Vms/Pages/VmsDataTable.php

@@ -66,7 +66,10 @@ class VmsDataTable extends DataTable implements ClientArea, AdminArea
             $createButton->setIcon('lu-zmdi lu-zmdi-plus');
             $createButton->replaceClasses(['lu-btn lu-btn--primary']);
             $this->addTitleButton($createButton);
-            $this->createSidebar = sl("sidebar")->getSidebar("virtualMachinesProxmoxCloudVps")->getChild("vmcreate");
+            $sidebars = sl("sidebar")->getSidebar("virtualMachinesProxmoxCloudVps")->getChildren();
+            if (isset($sidebars['vmcreate'])) {
+                $this->createSidebar = sl("sidebar")->getSidebar("virtualMachinesProxmoxCloudVps")->getChild("vmcreate");
+            }
             $this->createButton = $createButton;
         }
         //import