I can't upload my Eyecad VR project to my personal cloud.

To understand if you can export your 3D model to your personal cloud and open it using either the web-app or the Desktop Viewer (by entering into the “Exploration” mode when you run Eyecad VR launcher) you need to take a look at the size of your EVR project file. The EVR file cannot exceed the size of 250 MB to be uploaded to the cloud.