[solved] BME280 bug

[Luckbert]

Hello, everyone, 
I have connected a BME280 to my system (OP 0.17.0, RPI3, IMU 9255). 
Bugs: 
No temperature.
No humidity. 
Wrong air pressure. 
The air pressure is displayed with approx. 700 mbar. But this can't be true. With a BMP180 everything ran smoothly. Is the sensor faulty?
Are there any ideas for the bugs?

Jürgen

edit:
debugmode:
Signal K starting
*** WARNING *** The program 'node' uses the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node>
*** WARNING *** The program 'node' called 'DNSServiceRegister()' which is not supported (or only supported partially) in the Apple Bonjour compatibility layer of Avahi.
*** WARNING *** Please fix your application to use the native API of Avahi!
*** WARNING *** For more information see <http://0pointer.de/avahi-compat?s=libdns_sd&e=node&f=DNSServiceRegister>
signalk-server running at 0.0.0.0:3000

cat: /dev/ttyOP_SKVA: Datei oder Verzeichnis nicht gefunden

Cannot open NGT-1-A device /dev/ttyOP_N2K

Error reading /home/pi/.openplotter/public/mapcache
GET /signalk/v1/api/vessels/self 200 41.459 ms - 669
cat: /dev/ttyOP_SKVA
: Datei oder Verzeichnis nicht gefunden

Cannot open NGT-1-A device /dev/ttyOP_N2K