[Ajuda] Como resolver este erro ?

Unhandled Runtime Error

TypeError: Cannot read properties of undefined (reading 'props')
Estou utilizando Typescript
Source

src\pages\signin\index.public.tsx (41:25) @ eval

  39 | if (user && router) {
  40 |   if (router.query?.redirect) {
> 41 |     router.push(this.props.router.query.redirect);
     |                     ^
  42 |   } else {
  43 |     router.push('/feed');
  44 |   }