Thank you for letting us know you're experiencing problems. While this might not aid you personally, it serves to note the urgency of this issue. Repairs are underway.
https://forum.myrouteapp.com/topic/1308/ongoing-android-navigation-issues
"an error occurred while connecting with the server"
Seems to be a problem that was already frequently reported the last days : https://forum.myrouteapp.com/topic/1298/routes-can-not-be-uploaded/19
Delete the app and re-install it again
@Hans-van-de-Ven-MRA-Master Hallo, Hans, I was just notifying the poster that this was a reported problem in the last few days (suggesting a solution may be underway). However, I myself don't experience that problem, as I don't have the app
Thank you for letting us know you're experiencing problems. While this might not aid you personally, it serves to note the urgency of this issue. Repairs are underway.
https://forum.myrouteapp.com/topic/1308/ongoing-android-navigation-issues