Cannot find specified link - Can't share anything anymore

Please provide the following tags: install / upgrade, package type, server OS, pydio version

I’m using Pydio 8.2.3 on Centos 7 / Apache and we are now getting this error message when we try to share our content with links. It used to work!

When we use links like this below, we get “Cannot find specified link!

What could be the problem? Is this a permission issue regaring the public folder or something wrongly configured in settings?

Do you know why you have “/pydio” at the end of link ?