Automatically app.js file encryption problem on Cpanel

2 months ago I deployed a Laravel application on Cpanel. It was running smoothly until yesterday. But I noticed some unusual problems today. After a lot of debugging suddenly I found my app.js file which is located in public_html is encrypted. But I found this file is ok on my local machine. I can't understand what is the reason for this problem and how can I solve this? I attached two screenshots here regarding the live server app.js and my local machine app.js when running on the browser.

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