fatal error after installing docker on Synology docker manager

[alhelo]

Dear team,
when I install ay image from Kasm on my synology docker manager,
it will be installed but in logs you can see alot of error and the system is not accessable.
I install it over scropt:
docker run -d \

docker run -d
--name=jummyDT
--security-opt seccomp=unconfined #optional
-e PUID=1000
-e PGID=1000
-e TZ=Europe/Berlin
-p 5004:6901
-v /volume1/docker/ksm:/config
--restart unless-stopped
kasmweb/ubuntu-jammy-desktop:1.14.0

after installation, when checking the folder ksm, it is empty.
and when try to access over UR:Port, I get error 402 empty response

under logs I see the follwoing entries:

[alhelo]

container seems up and running

[webysther]

Check kernel version, my Synology have a old kernel and some docker images stop working after a while.

[mmcclaskey]

Those logs from KasmVNC look normal in terms of KasmVNC is running and taking requests. I did notice the log that your IP was blacklisted. Which means you are sending the wrong credentials and KasmVNC blocked you after too many requests with bad creds.

[alhelo]

Thanks for reply.. What are the credentials ?
And how can I remove the Blacklist?