Unable to upload images using NodeBB Plugin Imgur plug in

[linan2332]

Hi guys.
I receive the following error after follow the instruction to install the plug in. It seems like there are some people also not able to fix it. However I saw in this post it is being solved. Can anyone that experience this share their solutions?

It also came with the following error in log

8/1 04:13 [204] - error: /api/admin/uploadlogo
Error: invalid-refresh-token
at refreshToken (/app/node_modules/nodebb-plugin-imgur/index.js:102:20)
at Request._callback (/app/node_modules/nodebb-plugin-imgur/index.js:216:13)
at Request.self.callback (/app/node_modules/request/request.js:198:22)
at emitTwo (events.js:87:13)
at Request.emit (events.js:172:7)
at Request.<anonymous> (/app/node_modules/request/request.js:1035:10)
at emitOne (events.js:82:20)
at Request.emit (events.js:169:7)
at IncomingMessage.<anonymous> (/app/node_modules/request/request.js:962:12)
at emitNone (events.js:72:20)
at IncomingMessage.emit (events.js:166:7)