Problem importing flight plan from Simbrief to Navigraph Apple Ipad

Hi guys, when I open the Navigraph application on the Apple Ipad, and click create new flight plan, import from Simbrief, it doesn’t work anymore, I get this message:

Alert
Could not load flight ending message with error: Response status code was unacceptable: 400.

Alessandro

Please see Can't Access iOS on iPad - #9 by stephen