If I click on any article  it leads  to https://news.mydramalist.com/article .....

Where did you clicked from and what is the issue?

When iam trying to open an article from news  it leads  to Web server is returning an unknown error 

can you try it in a different browser or incognito? 

From a different browser or incognito i don't have an issue! WHY??

You might want to try to clear your cache for mydramalist

THANK YOU SO MUCH!!!