Can not activate a new device, after up LoraServer from 0.26.1 tp 2.0

I have upgraded the LoraServer from v0.26.1 to v2.0 last night.
The old devices can uplink messages to the server without problem. But, a new device could not be activated.

Please help.

A post was merged into an existing topic: [release] LoRa (App) Server v2 with LoRaWAN 1.1 support + new UI