Additional settings redirect to a page upon submitting

I am using the plugin and I have been trying to use the additional settings to redirect to a page after hitting the submit button. It used to work but now I stay on the page and get a regular message in a box with green borders.

I am using this:
on_sent_ok: “location = ‘https://www.mywebsite.com/mypage’;”

Plugin v. 3.3.2

Found the problem. It was a conflict with another plugin.