TCPDF Image not showing

   private function generatePDF($pdfData)
    {
      
        $pdf = new \TCPDF();
        $pdf->SetCreator(PDF_CREATOR);
        $pdf->SetAuthor('Your Company');
        $pdf->SetTitle('Invoice');
    
        // Add a page
        $pdf->AddPage();

        $logoURL = base_url('/logo.png'); 
        $html = '
        <table width="100%" cellpadding="5">
            <tr> 
                <td width="50%">
                     <img src="' . $logoURL . '" width="150" />
                </td>
                <td width="50%" align="right">
                   
                </td>
            </tr>
        </table>
    
        <h1>Invoice #' . $pdfData['invoice_id'] . '</h1>
        <p>Invoice Date: ' .  $invoiceDate . '<br>
        Due Date: ' . $dueDate . '</p>
    
        <h3>Invoiced To:</h3>
        <p>' . $pdfData['full_name'] . '<br>
        ATTN: ' . $pdfData['phonenum'] . '<br>
        ' . $pdfData['country'] . '</p>
   
    <p style="text-align:right;">PDF Generated on ' . date('l, F jS, Y') . '</p>';
        $pdf->writeHTML($html, true, false, true, false, '');
        return $pdf->Output('', 'S'); // 'S' returns the document as a string
    }

Can anyone help me solve this problem? I'm using Codeigniter 4, and the pdf is generated but the image doesn't show that's the problem I need to solve. I tried many ways but could not solve this.

When generating the PDF the image should be displayed at the top of the pdf,

maybe use "$logoURL = base_url('/logo.png'); etc ...." in a view to see if the img src is correct?