Lightsail images wont load into pdf view

Hi, I have came acorss a weird issue, I have a PHP application running in a LAMP stack which should load the Logo in the invoice, (PDF).Which works fine in shared hosting and local host.

$info_left_column .= pdf_logo_url();

pdf_multi_row($info_left_column, $info_right_column, $pdf, ($dimensions['wk'] / 2) - $dimensions['lm']);
$pdf->ln(10);

This works fine everywhere, I did some research and some asked to enable GD extension, Which I already enabled with no luck,Application loads the same URL function every where except here,, where a pdf is generated,

Did anyone has experienced this type of issue? Any suggestions guys?