Cannot upload any image

[peng potter]

1,I build my website today, and when I tried to upload logo with admin account, I got the 502 error, here's the information from the console

Unchecked runtime.lastError: The message port closed before a response was received.
jquery.js:9837 POST http://xn--uc1a5y.club/api/admin/uploadlogo 502 (Bad Gateway)
send @ jquery.js:9837
ajax @ jquery.js:9434
o @ jquery.form.min.js:7
e.fn.ajaxSubmit @ jquery.form.min.js:7
o.ajaxSubmit @ uploader.js:70
t @ uploader.js:58
(anonymous) @ uploader.js:34
dispatch @ jquery.js:5237
g.handle @ jquery.js:5044
trigger @ jquery.js:8471
(anonymous) @ jquery.js:8549
each @ jquery.js:367
each @ jquery.js:202
trigger @ jquery.js:8548
C.fn.<computed> @ jquery.js:10446
(anonymous) @ uploader.js:30
dispatch @ jquery.js:5237
g.handle @ jquery.js:5044
socket.io.js:7 GET http://xn--uc1a5y.club/socket.io/?EIO=3&transport=polling&t=M-u4u8u 502 (Bad Gateway)

2,Then I register as a user, and I tried to reply a topic and add a image, I also got the error, here's the information from the console:

POSThttp://xn--uc1a5y.club/api/post/upload
[HTTP/1.1 502 Bad Gateway 467ms]

XHRGEThttp://xn--uc1a5y.club/socket.io/?EIO=3&transport=polling&t=M-u7R5U
[HTTP/1.1 502 Bad Gateway 353ms]

XHRGEThttp://xn--uc1a5y.club/socket.io/?EIO=3&transport=polling&t=M-u7Rq4
[HTTP/1.1 200 OK 358ms]

GEThttp://xn--uc1a5y.club/socket.io/?EIO=3&transport=websocket&sid=rzrweVDrUFp2T9n4AAAB
[HTTP/1.1 200 Connection established 333ms]

XHRGEThttp://xn--uc1a5y.club/socket.io/?EIO=3&transport=polling&t=M-u7Rw5&sid=rzrweVDrUFp2T9n4AAAB
[HTTP/1.1 200 OK 331ms]

XHRPOSThttp://xn--uc1a5y.club/socket.io/?EIO=3&transport=polling&t=M-u7R_y&sid=rzrweVDrUFp2T9n4AAAB
[HTTP/1.1 200 OK 332ms]

XHRGEThttp://xn--uc1a5y.club/socket.io/?EIO=3&transport=polling&t=M-u7S08&sid=rzrweVDrUFp2T9n4AAAB
[HTTP/1.1 200 OK 329ms]

GEThttp://xn--uc1a5y.club/assets/uploads/system/favicon.ico?v=1r9n0mjb7dr
[HTTP/1.1 404 Not Found 368ms]

[peng potter]

still waiting ~

[abhinov singh]

@peng-potter
All other features of NodeBB are working ?

[PitaJ]

Are there any errors in the server log?