Cannot showing my source page

Hi, I am having a problem showing my source page.
This is my tabs-routing.module.ts



and this is my sources.page.html

this is my source.page.html

and this is my sources page

if I want to click one of the news, for example, the ABC news, it should go to the source page, but it does not show anything, and I do not know what the error.
this is my source page after I click the abc news