You can see in the css downloaded this:
Warning</b>: Undefined array key "speech" in <b>C:\xampp\htdocs\activetelematics.com.my\lib\exe\css.php</b> on line <b>83</b>
<br />
<b>Fatal error</b>: Array and string offset access syntax with curly braces is no longer supported in <b>C:\xampp\htdocs\activetelematics.com.my\vendor\marcusschwarz\lesserphp\lessc.inc.php</b> on line <b>761</b><br />
You got then no CSS at all due to this bug.