SOLUTION:
I changed the order of COOKIES strings in header request.
I really do not know why it causes problem, but everything is OK now
...
In function 'phpDigMakeCookies', change concat order.
// $cookiesSendString .= "Cookie: ".$cookieString['string'].END_OF_LINE_MARKER;
$cookiesSendString = "Cookie: ".$cookieString['string'].END_OF_LINE_MARKER.$cookiesSendString;