> Source: [sk121714](https://support.checkpoint.com/results/sk/sk121714)

# sk121714 - show-simple-gateway API command fails with "generic_error" due to Simple Gateway object with corrupted data

| Property | Value |
|----------|-------|
| Solution ID | sk121714 |
| Date Created | 2017-12-16 |
| Last Modified | 2017-12-18 |
| Technical Level | Advanced |
| Products | Security Management Server |
| Versions | R82.10, R82, R81.20 |

## Symptoms

- `show-simple-gateway` Management API command fails with "`generic_error`":

```

[Expert@Hostname:0]# mgmt_cli show-simple-gateway name i-032ee951ed1b0602a -s id.txt
code: "generic_error"
message: "Runtime error: Unmarshalling Error: Unable to create an instance of com.checkpoint.management...api.CpmiOwned "
```

## Cause

Corrupted Simple Gateway's *multi_realms_for_blades* configuration in Database - the *multi_realms_for_blades* container has an entry with empty realms.

## Solution

This solution requires authentication. Please log in to view the full solution.

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