@MoatazKhan12 ...
Ken Black has retired from the Canvas Community, so you won't be hearing from him. However, if you follow the link that he gave to "How can I make my pdf files in a module...", you'll be taken to a page that says the content has been archived (as you've indicated above). Reading further down that page, there's a section called "What if I lose access to something I need?". You'll find a link to a form that you can fill out to request access to that page. That is the best advice I can give at this time, so hopefully you'll be able to get that page restored so you can view the content again.
I hope this will help! Take care...be well.
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