Problem while setting Mail Client to Protonmail via Hydroxide bridge

Applications
3

Service is already running:

hydroxide.service - Hydroxide ProtonMail bridge
Loaded: loaded (/etc/systemd/system/hydroxide.ser>
Active: active (running) since Thu 2024-07-25 05:>
Main PID: 14557 (hydroxide)
Memory: 7.5M
CGroup: /system.slice/hydroxide.service
└─14557 /usr/bin/hydroxide serve

Still I’ve used the K9-Android Email client just for debug and I get the following error:

photo_2024-07-25_03-59-20
photo_2024-07-25_03-59-20720×1280 46 KB

Running the ss -l4p, I get the following:

Netid State  Recv-Q Send-Q   Local Address:Port
Peer Address:Port         Process
udp   UNCONN 0      0              0.0.0.0:45305
0.0.0.0:*
udp   UNCONN 0      0            127.0.0.1:domain
0.0.0.0:*
tcp   LISTEN 0      128          127.0.0.1:webcache
0.0.0.0:*
tcp   LISTEN 0      10        127.0.0.1%lo:domain
0.0.0.0:*
tcp   LISTEN 0      128          127.0.0.1:imyx
0.0.0.0:*
tcp   LISTEN 0      128          127.0.0.1:blackjack
0.0.0.0:*