Version: 1.12.2-2.4.23.115
Forge Version: 14.23.4.2749
The window pops up when I hold the External Distributor and press the shift right-click Liquid manager, but there is no crash report.
https://youtu.be/SwH8XPBkLho

Can you send the latest.log or the log from when it crashed?
They are located in the logs folder in your instance.

This is the latest.log.

Did you run the world and made it crash and then uploaded the log?

OK, This is the log that just disconnected the server. https://www.dropbox.com/s/mvp5qick0u2ap7u/latest.log?dl=0

Thank you, this log was helpful of what it issue is. I'm going to have a look at it some more and fix shortly.
As for now it's an incomparability with HoloInventory