Workflow link error

I’m on OJS (December 16, 2017)

Our articles in the submission menu are miss linking. I can click on the article title and its go to blank page (

Secondly, our current and back issue is not fetching article on front-end webpage. (

I don’t know exactly when this problem occurred because this domain also hosts multiple websites. However, our last check is on January 8, 2018.

Could anyone help me.