Image not loading for new chapters

[Ksetrar]

As the title says, some of the manga chapters are not loading and even the uploaded source says

403 Forbidden
nginx/1.14.0 (Ubuntu)

https://mangadex.org/chapter/769640
https://mangadex.org/chapter/769641
https://mangadex.org/chapter/769642

 

[Ksetrar]

Its old chapter ...
I cannot delete this thread .... I did not look at the uploaded date and reported the old issue