I am having trouble ordering PCBs with your new system. If I click Generate Gerber or Order at JLCPCB, the Gerber viewer malfunctions and does not allow me to continue ordering. I have tried exporting the gerber and importing it directly into jlcpcb and the same issue occurs. I am able to view the gerber without issue at gerber-viewer.com.
Not all of my designs are having this issue, only some of them. I shared one of the PCBs in the public folder. I called it Test_Board.
Your system is not working properly. If it can't detect a gerber that was created on easyeda.com, then something is wrong and needs to be fixed. I posted the issue to make you aware that a problem exists, and I even created a test file for you to look at. I'm unable to verify a gerber before ordering, and I'm having to verify them with 3rd party software.
The problem didn't exist before you updated the site last week.
I tested your test project, which i not able to see preview and not able to auto detect dimension in pcb order page.
Maybe you can manually keyin pcb info in order page and they will verify gerber. they will contact you if needed to top up or any doubt.
Brand new interactions and interfaces. 
Easy to use and quick to get started. 
Our system can automatically detect the gerber files, a warning will be issued when a problem is detected, eg: Could not find Drill layer/outline layer, please kindly check whether your files are complete or not when you get a warning. If there is no problem, just ignore the warning and continue placing your order. The website may not recognize the file 100% without error, but rest assured that our engineers will review your files before put it into production. If there is any issue about that, we will let you know.
If any other questions, please feel free to write to support@jlcpcb.com. Our JLCPCB support is always happy to help. :)