Cannot view or print invoices

Ohhhh i found something, the invoice generation seems to be failing due this problem:
Error Message include_once(): Failed opening ‘/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/pr/fields/PDFCustomField.php’ for inclusion (include_path=’.:/usr/share/pear’)
Error Number 2
Error File /home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/autoload.php
Error Line 12
Error Context {“className”:”rnwcinv\\pr\\fields\\PDFCustomField”,”DIR”:”/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder”,”path”:”/pr/fields/PDFCustomField”}
Error Detail file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/autoload.php
line:12
function:CatchShutdownHandler
class:RednaoWooCommercePDFInvoiceAjax
object:[object Object]
type:->
args:2,include_once(): Failed opening ‘/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/pr/fields/PDFCustomField.php’ for inclusion (include_path=’.:/usr/share/pear’),/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/autoload.php,12,[object Object]

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/autoload.php
line:12
function:include_once

function:RedNaoWCInvLoader
args:rnwcinv\pr\fields\PDFCustomField

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/htmlgenerator/fields/FieldFactory.php
line:86
function:spl_autoload_call
args:rnwcinv\pr\fields\PDFCustomField

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/htmlgenerator/AreaGenerator.php
line:47
function:GetField
class:rnwcinv\htmlgenerator\fields\FieldFactory
type:::
args:[object Object],[object Object]

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/htmlgenerator/PageGenerator.php
line:61
function:Generate
class:rnwcinv\htmlgenerator\AreaGenerator
object:[object Object]
type:->
args:

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/htmlgenerator/PageGenerator.php
line:38
function:GenerateArea
class:rnwcinv\htmlgenerator\PageGenerator
object:[object Object]
type:->
args:[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/htmlgenerator/DocumentGenerator.php
line:80
function:Generate
class:rnwcinv\htmlgenerator\PageGenerator
object:[object Object]
type:->
args:

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/PDFGenerator.php
line:319
function:Generate
class:rnwcinv\htmlgenerator\DocumentGenerator
object:[object Object]
type:->
args:

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/PDFGenerator.php
line:265
function:Generate
class:RednaoPDFGenerator
object:[object Object]
type:->
args:false

file:/home/domains/vol2/885/2258885/user/htdocs/wp-content/plugins/woo-pdf-invoice-builder/woocommerce-pdf-invoice-ajax.php
line:579
function:GeneratePreview
class:RednaoPDFGenerator
object:[object Object]
type:->
args:

file:/home/domains/vol2/885/2258885/user/htdocs/wp-includes/class-wp-hook.php
line:287
function:DiagnoseError
class:RednaoWooCommercePDFInvoiceAjax
object:[object Object]
type:->
args:

file:/home/domains/vol2/885/2258885/user/htdocs/wp-includes/class-wp-hook.php
line:311
function:apply_filters
class:WP_Hook
object:[object Object]
type:->
args:,

file:/home/domains/vol2/885/2258885/user/htdocs/wp-includes/plugin.php
line:484
function:do_action
class:WP_Hook
object:[object Object]
type:->
args:

file:/home/domains/vol2/885/2258885/user/htdocs/wp-admin/admin-ajax.php
line:184
function:do_action
args:wp_ajax_rednao_wcpdfinv_diagnose_error