Migration process stop at step1 because browser javascrip load error

Hello. Thanks for your kind reply on this subject.

In a cPanel server, there is an error loading the duplicator file in the browser: Loading failed for the <script> with source “https://xxx-yyy.com/dup-installer/assets/inc.libs.js?v=1.3.36”.

If I use the same file in a Windows WAMP installation, it work flawless, but when upload the files into the cPanel server, give that error.

Checking permissions, I run chown -R and all files has the proper server permission however, still fails.

BTW if I insist reload the site (F5), sometimes load the file without a problem, sometimes don’t, and when it works at step #1, give error again in the step #2

Any security config you may think in the fpm-php options/libs that detect some conflics with this js file?

Any idea about this error?

Thanks and regards.