# System Error for field repeater Set repeater

**URL:** <https://discourse.getcockpit.com/t/system-error-for-field-repeater-set-repeater/1439>\
**Category:** Support\
**Created:** [May 7, 2020, 3:07pm UTC](https://discourse.getcockpit.com/t/system-error-for-field-repeater-set-repeater/1439 "2020-05-07T15:07:50Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![Sebastian](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@Sebastian](https://discourse.getcockpit.com/u/Sebastian)\
**Post date:** [May 7, 2020, 3:07pm UTC](https://discourse.getcockpit.com/t/system-error-for-field-repeater-set-repeater/1439/1 "2020-05-07T15:07:50Z")

</div>

## I have a field with this setting:

{  
“field”: {  
“name”: “ABC”,  
“type”: “set”,  
“options”: {  
“fields”: [  
{  
“name”: “Cat”,  
“label”: “Cat”,  
“type”: “text”  
},  
{  
“name”: “active\_cat”,  
“label”: “active\_cat”,  
“type”: “boolean”  
},  
{  
“type”: “repeater”,  
“label”: “Add”,  
“options”: {  
“field”: {  
“name”: “name\_menu”,  
“type”: “set”,  
“options”: {  
“fields”: [  
{  
“name”: “Name”,  
“type”: “text”,  
“label”: “Name”  
},  
{  
“name”: “Desc”,  
“type”: “text”,  
“label”: “Desc”  
}  
]  
}  
}  
}  
}  
]  
}  
}  
}

When I save, a “system error” message appears.  
It works locally but on my remote server it doesn’t work. On the remote server I installed MongoDB.

Could this possibly cause the problem?  
Thanks