@kotak54, your topic has been moved to a more suitable location on the forum. Installation and Troubleshooting is not for problems with your project 
See About the Installation & Troubleshooting category.
As I have no idea where ou are stuck, the normal steps involve
- Get familiar with programming of the LCD (e.g. print hello world)
- Get familiar with the programming of the acs712 (e.g. display readings on the serial monitor).
- Combine the two.
And a google for e.g. https://www.google.com/search?q=arduino+acs712 might give you some ideas.