Simulation not working for Rfid based security system

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cross mob
Not applicable
I have been working on this project for a week, spending at least 2-3 hours daily on the computer trying to figure it out. I searched a lot of similar codes for this project and eventually, i successfully created a Hex file for the same. But the problem is that i am not able to run this on Proteus. The simulation starts successfully but nothing happens when i type, even the LCD doesn't display anything. It would be great if someone help me out because i am quite on the verge on loosing my mind here. I have absolutely no background on electronics and have to make this project because the subject requires it. I have included the Proteus file, C file and the HEX file . Please check it out and tell me what's wrong. Thanks!
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