Okay let me simplify it..
I started up my server in LAN.
And joined the server with my modded client (It's a HUD Mod, where you have a different skin/HUD the things that show Health, Score screen...etc) and when I play on my server there is no HUD, like no score screen when I press tab, no health display, no evos/credits display, it doesn't display those stuffs.
But when I play on my server without a modded client, then it works fine.
How do I fix this?