[Help with Custom NPCs]

Hello, im trying to do a quest with the mod Custom NPCs, what i want to do is when you get a quest change the dialog of another npc, Example: NPC1:Hi there! NPC2:Hi player, please talk to NPC1. NPC1:Oh hello player, NPC2 wants to tell me something? Okay thanks.

Like when you recieve a quest the dialog of another npc changes to another dialog. Anyone knows how to do that?

At the versión 1.12.2 btw.

[I need help a with minecraft minecraft error]

When i open minecraft at the version 1.7.10 it just crash, i have the mods backpack,bibliocaft,customnpcs,chisel,journeymap,malisiscore,malisisdoor,mca,playerapi,radixcore and the betweenlands

help please

[I need help a with minecraft minecraft error]

I need help, when i try to install forge it says: No Launcher Profile.Someone knows how to solve it? The version that im trying to install is the 1.7.10

 

[I need help a with minecraft minecraft error]

When i try to start minecraft using mods in versión 1.7.10 a error ocurred when i enter my world, the error says :  java.lang.NoSuchMethodError: net.minecraft.client.gui.ScaledResolution.(Lnet/minecraft/client/settings/GameSettings;II)V
Someone can help me?