Can't publish post and meetup on homepage always get request?

[shuaiey]

Problem 1 I can create a new post, but when I click it to publish (change state), page still displays loading.
Problem 2 I found meetup on my homepage always get request.
There is my terminal outputs:

...
GET /api/meetup/572f07318515e53f2045885c 304 5.162 ms
GET /api/meetup/572f07318515e53f2045885c 304 4.695 ms
GET /api/meetup/572f07318515e53f2045885c 304 5.802 ms
GET /api/meetup/572f07318515e53f2045885c 304 11.607 ms
GET /api/meetup/572f07318515e53f2045885c 304 6.845 ms
GET /api/meetup/572f07318515e53f2045885c 304 4.680 ms
GET /api/meetup/572f07318515e53f2045885c 304 6.593 ms
GET /api/meetup/572f07318515e53f2045885c 304 4.691 ms
GET /api/meetup/572f07318515e53f2045885c 304 5.001 ms
GET /api/meetup/572f07318515e53f2045885c 304 7.381 ms
GET /api/meetup/572f07318515e53f2045885c 304 5.005 ms
GET /api/meetup/572f07318515e53f2045885c 304 4.876 ms
GET /api/meetup/572f07318515e53f2045885c 304 4.993 ms
GET /api/meetup/572f07318515e53f2045885c 304 5.918 ms
GET /api/meetup/572f07318515e53f2045885c 304 4.638 ms
GET /api/meetup/572f07318515e53f2045885c 304 6.502 ms
GET /api/meetup/572f07318515e53f2045885c 304 6.644 ms
GET /api/meetup/572f07318515e53f2045885c 304 3.799 ms
...

I'd very much appreciate your help.