Blank page 500

Can you help me I do have this errors:

fclose() expects parameter 1 to be resource, bool given
Error Number 2
Error File /home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/phenx/php-font-lib/src/FontLib/BinaryStream.php
Error Line 78
Error Context []
Error Detail function:CatchShutdownHandler
class:RednaoWooCommercePDFInvoiceAjax
object:[object Object]
type:->
args:2,fclose() expects parameter 1 to be resource, bool given,/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/phenx/php-font-lib/src/FontLib/BinaryStream.php,78,

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/phenx/php-font-lib/src/FontLib/BinaryStream.php
line:78
function:fclose
args:false

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/lib/Cpdf.php
line:2844
function:close
class:FontLib\BinaryStream
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/Adapter/CPDF.php
line:986
function:selectFont
class:Cpdf
object:[object Object]
type:->
args:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/lib/fonts/DejaVuSans

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FontMetrics.php
line:309
function:get_font_height
class:Dompdf\Adapter\CPDF
object:[object Object]
type:->
args:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/lib/fonts/DejaVuSans,10.5

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameReflower/Text.php
line:197
function:getFontHeight
class:Dompdf\FontMetrics
object:[object Object]
type:->
args:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/lib/fonts/DejaVuSans,10.5

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameReflower/Text.php
line:372
function:_layout_line
class:Dompdf\FrameReflower\Text
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php
line:924
function:reflow
class:Dompdf\FrameReflower\Text
object:[object Object]
type:->
args:[object Object]

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameReflower/Block.php
line:847
function:reflow
class:Dompdf\FrameDecorator\AbstractFrameDecorator
object:[object Object]
type:->
args:[object Object]

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php
line:924
function:reflow
class:Dompdf\FrameReflower\Block
object:[object Object]
type:->
args:[object Object]

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameReflower/Block.php
line:847
function:reflow
class:Dompdf\FrameDecorator\AbstractFrameDecorator
object:[object Object]
type:->
args:[object Object]

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php
line:924
function:reflow
class:Dompdf\FrameReflower\Block
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameReflower/Page.php
line:141
function:reflow
class:Dompdf\FrameDecorator\AbstractFrameDecorator
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/FrameDecorator/AbstractFrameDecorator.php
line:924
function:reflow
class:Dompdf\FrameReflower\Page
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/vendor/dompdf/dompdf/src/Dompdf.php
line:836
function:reflow
class:Dompdf\FrameDecorator\AbstractFrameDecorator
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/PDFGenerator.php
line:363
function:render
class:Dompdf\Dompdf
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/PDFGenerator.php
line:341
function:render
class:RednaoPDFGenerator
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/PDFGenerator.php
line:264
function:Generate
class:RednaoPDFGenerator
object:[object Object]
type:->
args:false

file:/home/tubaq/public_html/wp-content/plugins/woo-pdf-invoice-builder/woocommerce-pdf-invoice-ajax.php
line:546
function:GeneratePreview
class:RednaoPDFGenerator
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-includes/class-wp-hook.php
line:287
function:DiagnoseError
class:RednaoWooCommercePDFInvoiceAjax
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-includes/class-wp-hook.php
line:311
function:apply_filters
class:WP_Hook
object:[object Object]
type:->
args:,

file:/home/tubaq/public_html/wp-includes/plugin.php
line:478
function:do_action
class:WP_Hook
object:[object Object]
type:->
args:

file:/home/tubaq/public_html/wp-admin/admin-ajax.php
line:176
function:do_action
args:wp_ajax_rednao_wcpdfinv_diagnose_error

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