As said previously in my following reply that i could confirm the issue and notified the theme developer about this.

https://support.shufflehound.com/forums/topic/project-breadcrumbs-link-doesnt-work/#post-4014

I have shared the child theme solution in the above reply that is working fine for me but not your site so i need your site access to troubleshoot it.

If you can’t share is site FTP access then please share site login access.