Stuck in the resizing landing page

workspace
nodejs

#1

when I try to access to my workspace, all tabs were loading without response.

with this problem, I try to restart the workspace, but it gave me error where it indicated to me that it was not possible to restart the workspace.

with this problem, I try to restart the workspace through the option (resize this workspace). this option requires the restart of the workspace. But now, is stuck in the resizing landing page.

the browser console give me this error several times:

POST https://vfs-gce-usw-121-2.c9.io/vfs/4287238?access_token=9c9AUUIyMegHfJFFGpkz 428 (Precondition Required)
request @ workspace-nodejs.js:42234
request @ workspace-nodejs.js:39896
tryNext @ workspace-nodejs.js:39950
(anonymous) @ workspace-nodejs.js:39962
wrapped @ workspace-nodejs.js:7683
setTimeout (async)
window.(anonymous function) @ workspace-nodejs.js:7837
(anonymous) @ workspace-nodejs.js:39962
(anonymous) @ workspace-nodejs.js:39899
done @ workspace-nodejs.js:42208
xhr.onload @ workspace-nodejs.js:42245
XMLHttpRequest.send (async)
request @ workspace-nodejs.js:42234
request @ workspace-nodejs.js:39896
tryNext @ workspace-nodejs.js:39950
(anonymous) @ workspace-nodejs.js:39962
wrapped @ workspace-nodejs.js:7683
setTimeout (async)
window.(anonymous function) @ workspace-nodejs.js:7837
(anonymous) @ workspace-nodejs.js:39962
(anonymous) @ workspace-nodejs.js:39899
done @ workspace-nodejs.js:42208
xhr.onload @ workspace-nodejs.js:42245
XMLHttpRequest.send (async)
request @ workspace-nodejs.js:42234
request @ workspace-nodejs.js:39896
tryNext @ workspace-nodejs.js:39950
(anonymous) @ workspace-nodejs.js:39962
wrapped @ workspace-nodejs.js:7683
setTimeout (async)
window.(anonymous function) @ workspace-nodejs.js:7837
(anonymous) @ workspace-nodejs.js:39962
(anonymous) @ workspace-nodejs.js:39899
done @ workspace-nodejs.js:42208
xhr.onload @ workspace-nodejs.js:42245
XMLHttpRequest.send (async)
request @ workspace-nodejs.js:42234
request @ workspace-nodejs.js:39896
tryNext @ workspace-nodejs.js:39950
(anonymous) @ workspace-nodejs.js:39962
wrapped @ workspace-nodejs.js:7683
setTimeout (async)
window.(anonymous function) @ workspace-nodejs.js:7837
(anonymous) @ workspace-nodejs.js:39962
(anonymous) @ workspace-nodejs.js:39899
done @ workspace-nodejs.js:42208
xhr.onload @ workspace-nodejs.js:42245
XMLHttpRequest.send (async)
request @ workspace-nodejs.js:42234
request @ workspace-nodejs.js:39896
tryNext @ workspace-nodejs.js:39950
(anonymous) @ workspace-nodejs.js:39962
wrapped @ workspace-nodejs.js:7683

Please help me,i would really appreciate your attendance