Broken after update 1.2.74

Hello

I cannot create invoice anymore here is the error :

Ohhhh i found something, the invoice generation seems to be failing due this problem:
Error Message Uncaught TypeError: Unsupported operand types: string * int in /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/fields/PDFTable.php:472 Stack trace: #0 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/fields/PDFTable.php(751): rnwcinv\htmlgenerator\fields\PDFTable->GetItems() #1 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/fields/PDFFieldBase.php(129): rnwcinv\htmlgenerator\fields\PDFTable->InternalGetHTML() #2 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/AreaGenerator.php(112): rnwcinv\htmlgenerator\fields\PDFFieldBase->GetHTML() #3 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/PageGenerator.php(66): rnwcinv\htmlgenerator\AreaGenerator->Generate() #4 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/PageGenerator.php(42): rnwcinv\htmlgenerator\PageGenerator->GenerateArea(Object(stdClass), Array) #5 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/DocumentGenerator.php(130): rnwcinv\htmlgenerator\PageGenerator->Generate() #6 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/PDFGenerator.php(392): rnwcinv\htmlgenerator\DocumentGenerator->Generate() #7 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/PDFGenerator.php(294): RednaoPDFGenerator->Generate(false) #8 /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/woocommerce-pdf-invoice-ajax.php(601): RednaoPDFGenerator->GeneratePreview() #9 /home/drvmuua/www/wp-includes/class-wp-hook.php(307): RednaoWooCommercePDFInvoiceAjax->DiagnoseError(”) #10 /home/drvmuua/www/wp-includes/class-wp-hook.php(331): WP_Hook->apply_filters(”, Array) #11 /home/drvmuua/www/wp-includes/plugin.php(476): WP_Hook->do_action(Array) #12 /home/drvmuua/www/wp-admin/admin-ajax.php(187): do_action(‘wp_ajax_rednao_…’) #13 {main} thrown
Error Number 1
Error File /home/drvmuua/www/wp-content/plugins/PDFInvoiceBuilder/htmlgenerator/fields/PDFTable.php
Error Line 472
Error Context “N/A”
Error Detail Unknown

Best
Michael