There was a problem playing this item

I have been getting "There was a problem playing this item" error when I'm trying to play certain titles like One Piece (currently added to Bookmarks). I was able to play these videos up till 3 days ago, but haven't been able to run it since. I have tried all the Plex workarounds mentioned in the online forums like

Optimising the database
Updating my Plex Library
Setting a different temporary directory for Transcoding
Disabling Old Devices on the General Settings for Plex and the like.

I have tried to play the videos on Chrome(Web), Safari(Web) and on Samsung Smart TV Plex App with no luck.

Error Screen:

Twoure / KissNetwork.bundle

There was a problem playing this item #54