Remote device has just disconnected

[ilker-aktuna]

I receive a "Remote device has just disconnected" error but the BT device is still advertising.

Log from Proxy:

pi@bleproxy:~$ sudo btlejuice-proxy
[info] Server listening on port 8000
[info] Client connected
Configuring proxy ...
[status] Acquiring target d4:9c:dd:9e:f7:5b
[info] Proxy successfully connected to the real device
[info] Discovering services and characteristics ...
[error] Remote device has just disconnected
disarming watchdog
[i] Stopping current proxy.

Log from core:

pi@raspberrypi:~$ sudo btlejuice -u 192.168.254.42 -w
   ___ _   _       __        _          
  / __\ |_| | ___  \ \ _   _(_) ___ ___ 
 /__\// __| |/ _ \  \ \ | | | |/ __/ _ \
/ \/  \ |_| |  __/\_/ / |_| | | (_|  __/
\_____/\__|_|\___\___/ \__,_|_|\___\___|

[i] Using proxy http://192.168.254.42:8000
[i] Using interface hci0
2022-05-12T16:28:55.616Z - info: successfully connected to proxy
2022-05-12T16:29:19.966Z - warn: remote device has disconnected.

any ideas on this ?
what may be the problem ? is there a fix ?