I am not sure why it says that it couldn't be displayed. At first I got an error saying that the payload is incorrent so i changed it to v1.5 and it worked but it gave me this instead

This is my adaptive card JSON schema:
{
"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
"type": "AdaptiveCard",
"version": "1.5",
"body": [
{
"type": "TextRun",
"text": "New Intern Incoming!",
"color": "warning",
"size": "large",
"weight": "bolder",
"italic": true
},
{
"type": "RichTextBlock",
"inlines": [
{
"type": "TextRun",
"text": "Dear ",
"weight": "bolder"
},
{
"type": "TextRun",
"text": " [Team], ",
"weight": "bolder",
"fontType" : "monospace"
},
{
"type": "TextRun",
"text": "we have a new intern joining!",
"weight": "bolder",
"fontType" : "monospace"
}
]
},
{
"type": "TextRun",
"text": "Let's give a warmth welcome to: ",
"size": "medium"
},
{
"type": "Container",
"style": "emphasis",
"items": [
{
"type": "RichTextBlock",
"horizontalAlignment": "center",
"inlines": [
{
"type": "TextRun",
"text": "@{items('Apply_to_each')?['Assigned_x0020_Team/Value']} "
},
{
"type": "TextRun",
"text": " - ",
"isSubtle" : true
},
{
"type": "TextRun",
"text": "@{items('Apply_to_each')?['Name1']}",
"color": "accent",
"weight": "bolder"
}
]
},
{
"type": "Image",
"size": "medium",
"url": " @{variables('image_thumbnail')}"
},
{
"type": "RichTextBlock",
"horizontalAlignment": "center",
"inlines": [
{
"type": "TextRun",
"text": "@{outputs('Get_response_details')?['body/r23396171f3004bcc82cf8c1c7a6c7975']}"
}
]
}
]
}
]
}