Double check if you're pasting note ID not event ID.

Note IDs start with prefix "note1". 

 I got It!! Thanks! 

Great app btw 👌

 https://image.nostr.build/4678bf5593f602ac28b8c63081d74ea336701508c385b2984c1bb8def4f7ec02.jpg 

 Glad you liked it :)