Self hosted Apple Push Notification fail to init

From log both apple and apple_rn stated below error, Android is working fine.

**ERR: 2024/01/19 11:17:49 logger.go:77: Failed to initialize client: Failed to initialize apple notification service with pem cert err=no certificate for type=apple**
**ERR: 2024/01/19 11:17:49 logger.go:77: Failed to initialize client: Failed to initialize apple notification service with pem cert err=no certificate for type=apple_rn**
**INFO: 2024/01/19 11:26:56 logger.go:59: Initializing Android notification server for type=android**
**INFO: 2024/01/19 11:26:56 logger.go:59: Initializing Android notification server for type=android_rn**
{
    "ListenAddress":":8066",
    "ThrottlePerSec":300,
    "ThrottleMemoryStoreSize":50000,
    "ThrottleVaryByHeader":"X-Forwarded-For",
    "EnableMetrics": false,
    "SendTimeoutSec": 30,
    "ApplePushSettings":[
        {
            "Type":"apple",
            "ApplePushUseDevelopment":true,
            "ApplePushCertPrivate":"/home/dockeruser/mattermost-push-proxy/mattermost-push-proxy-linux-amd64/config/aps_production_priv.pem",
            "ApplePushTopic":"com.test.mattermost",
        },
	{
            "Type":"apple_rn",
            "ApplePushUseDevelopment":true,
            "ApplePushCertPrivate":"/home/dockeruser/mattermost-push-proxy/mattermost-push-proxy-linux-amd64/config/aps_production_priv.pem",
            "ApplePushTopic":"com.test.mattermost"
        }
    ],
    "AndroidPushSettings": [
        {
            "Type":"android",
            "ServiceFileLocation": "/home/dockeruser/mattermost-push-proxy/mattermost-push-proxy-linux-amd64/config/mattermost-fyt-firebase.json"
        },
	{
            "Type":"android_rn",
            "ServiceFileLocation": "/home/dockeruser/mattermost-push-proxy/mattermost-push-proxy-linux-amd64/config/mattermost-fyt-firebase.json"
        }
    ],
    "EnableConsoleLog": true,
    "EnableFileLog": false,
    "LogFileLocation": ""
}