MUI styles not working when install my react storybook library

Question

I have created a new storybook library using react with MUI material, but problem is that, i am using MUI custom theme and all MUI styles is working in my storyboook library and publish this storybook on gitlab and install in my new react app and when i am using button in my new react app styles not working which is define in my react storybook library.

pls chk these reference for my storybook library: http://ec2-15-207-106-67.ap-south-1.compute.amazonaws.com:4873/-/web/detail/@tyke-investor/ui-library

install in my new app this command: npm install @tyke-investor/ui-library

storybook library button styles and preview:

using storybook library in new app button styles and preview:

please suggest what is the problem in my new app

I am trying this but my storybook styles not apply on button.