Error to save mockup info

[kapit4n]

Error: {"data":{"error":"E_UNKNOWN","status":500,"summary":"Encountered an unexpected error","raw":{}},"status":500,"config":{"method":"PUT","transformRequest":[null],"transformResponse":[null],"jsonpCallbackParam":"callback","data":{"project":{"name":"TODO BUY","description":"This is a todo buy project.","imgToShow":"","userId":"5942eea65feebd477601664a","state":"New","type":"Design","createdAt":"2017-06-15T20:32:21.569Z","updatedAt":"2017-06-15T20:37:29.905Z","id":"5942eed55feebd477601664c"},"owner":{"email":"larce21@gmail.com","createdAt":"2017-06-15T20:31:34.847Z","updatedAt":"2017-06-15T20:38:36.014Z","firstName":"Luis","lastName":"Arce","username":"larce","id":"5942eea65feebd477601664a"},"name":"Login","width":"1000","height":"400","description":"This is the description of the project.","state":"New","imgToShow":"http://blogs.atlassian.com/news/2009/09/10/SimpleLoginScreen-thumb-250x179.png","createdAt":"2017-06-15T20:33:58.115Z","updatedAt":"2017-06-15T20:37:29.895Z","links":[],"id":"5942ef365feebd477601664f"},"url":"http://localhost:1337/mockup/5942ef365feebd477601664f","headers":{"Accept":"application/json, text/plain, /","Content-Type":"application/json;charset=utf-8"},"withCredentials":true},"statusText":"Internal Server Error"}