This page doesn’t seem to exist.

Hello @paebou. Kindly check to confirm if the page is still active. You can try a different browser as well and try to login as admin, and try on the admin level. Also, when do you experience this error? If with woocommerce, you can consult on this thread.

@manuell thanks for getting back to me. there is no woo commerce on the site. yes it still active with the same errors. it started about a month ago

Try this: Go to Settings > Permalinks > update to postname and update.

Thanks alot. did that and also updated the plugins. appreciated