Remote Access - app crashes ios

[Pinky und Brain]

Hi 
I want to stream acceleration data from phyphox a Matlab project.
I activated the remote access.
I tried to get data via the Chrome and the Edge browser. The graphical interface http://192.168.XXX.XXX
works fine, but
http://192.168.XXX.XXX/get
http://192.168.XXX.XXX/export
leads to a crash in the app.
 
I use an iPhone 7 with the IOS13.3.1 and an iPad. The app crashes on both devices.
Best
@Sebastian –> thanks for the great talk this week in Esslingen