zendesk timeout error on angular 11

i successfully integrated ngx-zendesk-webwidget into Angular 11 web app. we can chat via web-widget. but when i try to initialize zendesk webwidget for other functions like hide, show or activate, after 30-40 secs system gives timeout error. how can we solve problem?

technically speaking,

await this._NgxZendeskWebwidgetService.initZendesk(new ZendeskConfig());

gives this error: