后端已经起好了，前段有借口报500

[XIRALIP]

我是本地起的后端，后端管理页面是正常，起前端页面报错了，前端框架不怎么熟悉。。。
控制台报这个错误：
spread.js:25 GET http://localhost:9999/member/checkLogin 500 (Internal Server Error)
spread.js:25 Uncaught (in promise) Error: Request failed with status code 500
at e.exports (https://cdn.bootcss.com/axios/0.17.1/axios.min.js:8:4479)
at e.exports (https://cdn.bootcss.com/axios/0.17.1/axios.min.js:8:4321)
at XMLHttpRequest.l.(anonymous function) (https://cdn.bootcss.com/axios/0.17.1/axios.min.js:8:3278)
e.exports @ spread.js:25
e.exports @ spread.js:25
l.(anonymous function) @ spread.js:25
client.js?7955:183 [HMR] bundle has 1 warnings
client.js?7955:184 ./src/page/Home/home.vue

⚠ http://eslint.org/docs/rules/no-trailing-spaces Trailing spaces not allowed
E:\微信商城\xmall-front-master\xmall-front-master\src\page\Home\home.vue:105:10
}
^

✘ 1 problem (0 errors, 1 warning)

Warnings:
1 http://eslint.org/docs/rules/no-trailing-spaces
@ ./src/router/index.js 13:9-38
@ ./src/main.js
@ multi ./build/dev-client ./src/main.js