Custom link apears with this ending / ? in VALENTI theme

Hi,
first of all thank you for this great plugin!

It does work fine on any normal page within VALENTI theme.
But when I use “VALENTI Drag&Drop Page Builder, a strange string is being attached to the url, like this “mydomain.com/some-page/%20%E2%80%8E”

Any idea how to remove this “%20%E2%80%8E” string from the url?

Cheers

https://www.ads-software.com/plugins/wp-gallery-custom-links/