Seriell New GPS Device Alias Problem

[Slin_Slin]

Hi,

i have a Openplotter v3 installed on a Pi 4. When I want to add a new gps device (NL-82002U) Signal K Error: No such file or directory, cannot open /dev/ttyOP_gps. 

   

What could be my fault?

Code:

pi@openplotter:/dev $ openplotter-serial
wrong external apps format: unexpected EOF while parsing (<string>, line 0)
No module named 'openplotterSdrVhf.serialPorts'
No module named 'openplotterAvnav'
No module named 'openplotterNotifications.serialPorts'
No module named 'openplotterMaiana'
No module named 'openplotterIob'
No module named 'openplotterGpio'
No module named 'openplotterI2c'
No module named 'openplotterPypilot'
No module named 'openplotterNetwork.serialPorts'
No module named 'openplotterDashboards.serialPorts'
wrong external apps format: unexpected EOF while parsing (<string>, line 0)
No module named 'openplotterSdrVhf.serialPorts'
No module named 'openplotterAvnav'
No module named 'openplotterNotifications.serialPorts'
No module named 'openplotterMaiana'
No module named 'openplotterIob'
No module named 'openplotterGpio'
No module named 'openplotterI2c'
No module named 'openplotterPypilot'
No module named 'openplotterNetwork.serialPorts'
No module named 'openplotterDashboards.serialPorts'
wrong external apps format: unexpected EOF while parsing (<string>, line 0)
No module named 'openplotterSdrVhf.serialPorts'
No module named 'openplotterAvnav'
No module named 'openplotterNotifications.serialPorts'
No module named 'openplotterMaiana'
No module named 'openplotterIob'
No module named 'openplotterGpio'
No module named 'openplotterI2c'
No module named 'openplotterPypilot'
No module named 'openplotterNetwork.serialPorts'
No module named 'openplotterDashboards.serialPorts'
Warning: Stopping signalk.service, but it can still be activated by:
  signalk.socket
wrong external apps format: unexpected EOF while parsing (<string>, line 0)
No module named 'openplotterSdrVhf.serialPorts'
No module named 'openplotterAvnav'
No module named 'openplotterNotifications.serialPorts'
No module named 'openplotterMaiana'
No module named 'openplotterIob'
No module named 'openplotterGpio'
No module named 'openplotterI2c'
No module named 'openplotterPypilot'
No module named 'openplotterNetwork.serialPorts'
No module named 'openplotterDashboards.serialPorts'

Thanks
Nils