Hello! I have a problem. I installed a trading post and everything worked well, I set up in it what the server buys and sells. After that I deleted it and built it. Now when I go inside the inscription "Press CTRL + T to start trading at this tradepost." does not appear. The combination of the key does not work.
Sorry for my English. I use Google translator)

Hi,
I think all you have to do is wait a little.

See the full tradepost mod guide: https://nyuton.net/feudaltools-tradeposts-mod-guide/

5) Known Issues and Limitations
[...]
It can take up to 10 minutes for a newly built tradepost to register in the mod and become usable.

If it doesn't work still, please share a server logfile.

Yes you are right. Everything is working.