Cannot obtain Feed problem how to Solve? json is ready

Any Idea to solve this? any idea is welcome, thanks in advance

My Manifest

title=MyChannel.TV

major_version=1
minor_version=0
build_version=0

mm_icon_focus_hd=pkg:/images/icon_focus_hd.png
mm_icon_focus_sd=pkg:/images/icon_focus_sd.png
mm_icon_focus_fhd=pkg:/images/icon_focus_hd.png

bs_libs_required=roku_ads_lib

splash_screen_fhd=pkg:/images/splash_fhd.jpg
splash_screen_hd=pkg:/images/splash_hd.jpg
splash_screen_sd=pkg:/images/splash_sd.jpg
splash_color=#121212

ui_resolutions=hd

supports_input_launch=1

' Update content feed URL

#FEED_URL=https://mysite.tv/wp-content/uploads/2023/06/feed.json

' Update theme elements

#OverhangLogoUri=
#OverhangTitle=
#OverhangTitleColor=
#OverhangBackgroundUri=
#OverhangBackgroundColor=

#textColor=
#focusRingColor=
#progressBarColor=
#busySpinnerColor=

#backgroundImageURI=
#backgroundColor=

MY Json file

{
"id": "dev-summit-21-keynote-welcome-address",
"title": "AAAKeynote - Welcome address",
"shortDescription": "The Roku content team recaps the past year in streaming and highlights key industry trends for the upcoming year.",
"longDescription": "The Roku content team recaps the past year in streaming and highlights key industry trends for the upcoming year.",
"thumbnail": "https://MYSITE.tv/wp-content/uploads/2023/06/okaystvTV.jpg",
"releaseDate": "2021-10-26",
"genres": [
"educational"
],
"tags": [
"dev-summit-21"
],
"content": {
"duration": 89999,
"videos": [{
"videoType": "HLS",
"url": "https://cdn.jmvstream.com/w/AVJ-14515/playlist/playlist.m3u8",
"quality": "HD"
}],
"language": "pt-br",
"rating": {
"rating": "9+",
"ratingSource": "USA_PR"
},
"dateAdded": "2021-10-26T00:00:00Z"
}
}