Remove 'error' text on internal links

[samuk]

When I link to other internal links on my humhub instance it displays 'error' in the link preview

I understand that these can't be rendered completely, but could we remove the word 'Error' from the preview?

[gevorgmansuryan]

https://hub.transition-space.org/s/welcome-space/survey/show/single?id=8

[luke-]

Will be fixed with 2.0.1 release