Need Help regarding the wallet pass file

I have tried creating a wallet pass using this library and I can open that pkpass file in my mac and it works. But when i try to open that in my i-phone it doesn’t works. I tried sending it to my mail on phone and then while downloading the pkpass nothing happens and in safari it says safari can not download this file. This is my pass.json file and i have also attached the pkpass file generated using this library. I tried this on Iphone 8 and Iphone X and Iphone 12 pro max. File is easily openable in Macbook pro but not in Iphone. I have verifies the team identifier and pass type identifier these are all correct. Pkpass file drive link

{
	"formatVersion": 1,
	"passTypeIdentifier": "pass.com.mXXXXc.beXXXtac",
	"serialNumber": "23nmyuxofg146na",
	"teamIdentifier": "44VXXXY3TF",
	"barcodes": [
		{
			"message": "123456789",
			"format": "PKBarcodeFormatQR",
			"messageEncoding": "iso-8859-1"
		}
	],
	"barcode": {
		"message": "123456789",
		"format": "PKBarcodeFormatQR",
		"messageEncoding": "iso-8859-1"
	},
	"organizationName": "Github Inc.",
	"description": "A Booking pass",
	"foregroundColor": "rgb(255, 255, 255)",
	"backgroundColor": "rgb(253, 123, 35)",
	"coupon": {}
}

[shubhamrmob]

I replaced the Apple WWDR certificate and its started working. The certificate was not even expired so this was really weird. Thanks for your help @alexandercerutti

[alexandercerutti]

Hey @shubhamrmob, have you been able to solve it? If so, which was the issue?