When deploying a markeplace Ubuntu VMs (Canonical:UbuntuServer:16.04-LTS:latest) with two data disks.
AzureDiskEncryptionForLinux version is 1.1.0.17

Could you please tell me what the following error means ?

**extension.log**:
```
2018/10/11 15:28:28 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] encryption settings counter file not found, returning index value 0
2018/10/11 15:28:29 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] 500 [('date', 'Thu, 11 Oct 2018 15:28:28 GMT'), ('content-length', '1208'), ('content-type', 'text/html'), ('server', 'Microsoft-IIS/10.0')]
2018/10/11 15:28:29 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] result_content is
2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:29 500 - Internal server error.
2018/10/11 15:28:29
2018/10/11 15:28:29 <!--
2018/10/11 15:28:29 body{margin:0;font-size:.7em;font-family:Verdana, Arial, Helvetica, sans-serif;background:#EEEEEE;}
2018/10/11 15:28:29 fieldset{padding:0 15px 10px 15px;}
2018/10/11 15:28:29 h1{font-size:2.4em;margin:0;color:#FFF;}
2018/10/11 15:28:29 h2{font-size:1.7em;margin:0;color:#CC0000;}
2018/10/11 15:28:29 h3{font-size:1.2em;margin:10px 0 0 0;color:#000000;}
2018/10/11 15:28:29 #header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS", Verdana, sans-serif;color:#FFF;
2018/10/11 15:28:29 background-color:#555555;}
2018/10/11 15:28:29 #content{margin:0 0 0 2%;position:relative;}
2018/10/11 15:28:29 .content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;}
2018/10/11 15:28:29 -->
2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:29

2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:29
2018/10/11 15:28:35 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] 500 [('date', 'Thu, 11 Oct 2018 15:28:35 GMT'), ('content-length', '1208'), ('content-type', 'text/html'), ('server', 'Microsoft-IIS/10.0')]
2018/10/11 15:28:35 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] result_content is
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35 500 - Internal server error.
2018/10/11 15:28:35
2018/10/11 15:28:35 <!--
2018/10/11 15:28:35 body{margin:0;font-size:.7em;font-family:Verdana, Arial, Helvetica, sans-serif;background:#EEEEEE;}
2018/10/11 15:28:35 fieldset{padding:0 15px 10px 15px;}
2018/10/11 15:28:35 h1{font-size:2.4em;margin:0;color:#FFF;}
2018/10/11 15:28:35 h2{font-size:1.7em;margin:0;color:#CC0000;}
2018/10/11 15:28:35 h3{font-size:1.2em;margin:10px 0 0 0;color:#000000;}
2018/10/11 15:28:35 #header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS", Verdana, sans-serif;color:#FFF;
2018/10/11 15:28:35 background-color:#555555;}
2018/10/11 15:28:35 #content{margin:0 0 0 2%;position:relative;}
2018/10/11 15:28:35 .content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;}
2018/10/11 15:28:35 -->
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:35
2018/10/11 15:28:41 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] 500 [('date', 'Thu, 11 Oct 2018 15:28:40 GMT'), ('content-length', '1208'), ('content-type', 'text/html'), ('server', 'Microsoft-IIS/10.0')]
2018/10/11 15:28:41 [Microsoft.Azure.Security.AzureDiskEncryptionForLinux-1.0]: 3284: [Info] result_content is
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41 500 - Internal server error.
2018/10/11 15:28:41
2018/10/11 15:28:41 <!--
2018/10/11 15:28:41 body{margin:0;font-size:.7em;font-family:Verdana, Arial, Helvetica, sans-serif;background:#EEEEEE;}
2018/10/11 15:28:41 fieldset{padding:0 15px 10px 15px;}
2018/10/11 15:28:41 h1{font-size:2.4em;margin:0;color:#FFF;}
2018/10/11 15:28:41 h2{font-size:1.7em;margin:0;color:#CC0000;}
2018/10/11 15:28:41 h3{font-size:1.2em;margin:10px 0 0 0;color:#000000;}
2018/10/11 15:28:41 #header{width:96%;margin:0 0 0 0;padding:6px 2% 6px 2%;font-family:"trebuchet MS", Verdana, sans-serif;color:#FFF;
2018/10/11 15:28:41 background-color:#555555;}
2018/10/11 15:28:41 #content{margin:0 0 0 2%;position:relative;}
2018/10/11 15:28:41 .content-container{background:#FFF;width:96%;margin-top:8px;padding:10px;position:relative;}
2018/10/11 15:28:41 -->
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41
2018/10/11 15:28:41

```