Error after Upgrade

i have error in “Device Data” and “Lorawan Frame” … see picture above

im looking for logs in the Log folder (chirpstack-application-server). but nothing there.

1- chisrpstack was OK.
2- I follow the PostgreSQL - ChirpStack open-source LoRaWAN<sup>®</sup> Network Server
to add Postgres integration
3 - Upgrade with “apt-update”& “apt-upgrade”
4 - Get error like the picture show

it seems i have Redis 4

redis-server -v
Redis server v=4.0.9 sha=00000000:0 malloc=jemalloc-3.6.0 bits=64 build=9435c3c2879311f3

like this one: Not connected to Websocket API - #4 by brocaar

try to update now