5.4.0.6 X-Cart version and command line interface

[Vasilis-Vr]

This issue is about https://devs.x-cart.com/misc/command_line_tool.html (source file: https://github.com/xcart/xcart-docs/blob/master/_pages/devs_en/misc/command_line_tool.md)

It seems that the 5.4.0.6 X-Cart version doesn't support the command line interface. I am running a local host with PHP v. 7.2.23 in a Windows 7 platform with WAMPServer 3.1.9.
CLI works fine in this environment, inside an X-Cart 5.3.6 version store, but it doesn't work in a 5.4.0.6 version.
For example, the 'php xc5 list' command gives me a
"Parse error: syntax error, unexpected '?' in E:\wamp64\www\xcart5406\Includes\Utils\URLManager. php on line 276" error. Is there any issue with CLI and x-cart 5.4.x branch?