How to make tools work for custom characters?

So I just made a custom character for my shooting game. I made one because I think it looks better. So I make one and it wont let the gun appear or even let me shoot, please help me thank you.

Hi, I'm Zgoly (on YouTube), maybe your problem is that the part of the character you need to hold the tool is missing? Try following the path StarterPlayer -> HumanoidDefaultAssets -> HumanoidDefaultBodyPartsR15 (If there are no folders, create the same name) and load all the parts of the character into the HumanoidDefaultBodyPartsR15 folder. If at the start of the game your character is displayed normally, try to take your tool. If the character normally took your tool, then everything is connected with the character’s issuer when touching a brick (if it is in the game). If the character did not take the tool, the problem is in the tool. This method is made for a character of the form R15.