Player can't connect to the fabric MCDR server through Waterfall

[fToxicw5916]

My server is on a Mac M1 computer.

When I run my fabric server, it is normal. Output: MCDR.log The fabric server is on MCDR.

When I started the Waterfall server, it is also normal. Output: Waterfall.log

However, when I joined the server (I use MultiMC 5), Waterfall server says:

[19:55:32 INFO]: [/127.0.0.1:49757] <-> InitialHandler has connected
[19:55:36 INFO]: [fToxicw|/127.0.0.1:49757] <-> ServerConnector [RSI] has connected
[19:55:36 INFO]: [fToxicw|/127.0.0.1:49757] <-> ServerConnector [RSI] has disconnected
[19:55:46 WARN]: [/127.0.0.1:49745] <-> InitialHandler - read timed out
[19:56:03 WARN]: [/127.0.0.1:49757|fToxicw] -> UpstreamBridge - read timed out
[19:56:03 INFO]: [fToxicw] disconnected with: ReadTimeoutException : null
[19:56:03 INFO]: [/127.0.0.1:49757|fToxicw] -> UpstreamBridge has disconnected

And the client side says:

ReadTimeoutException: null

Nothing happened in the fabric server, no outputs. The server.properties file for the fabric server: server_properties.txt The config.yml for the Waterfall server: config_yml.txt I have to change the filetype for these two files since Github don't allow it's original filetype. Do you know why this happened? Thanks a lot.