Same deal with this mod as with my other HUD mods.
They will not work if you are using other mods that also mod the game hud. Please use common sense before commenting to let me know you installed 100 mods to the server and asking why your having problems. There is a config patch you can apply to run expansion with my HUD mods if you absolutely insist on running expansion then change the following.

In expansion settings, under the config folder, ExpansionMod, GeneralSettings.json, you have to change the "HUDColors" to transparent. Here is the correct config:

"HUDColors": {
"StaminaBarColor": "FFFFFF00",
"NotifierDividerColor": "FFFFFF00",
"TemperatureBurningColor": "FFFFFF00",
"TemperatureHotColor": "FFFFFF00",
"TemperatureIdealColor": "FFFFFF00",
"TemperatureColdColor": "FFFFFF00",
"TemperatureFreezingColor": "FFFFFF00",
"NotifiersIdealColor": "FFFFFF00",
"NotifiersHalfColor": "FFFFFF00",
"NotifiersLowColor": "FFFFFF00"
},

Thank you very much @Saiyans#5221 for the quick fix.