خطا بعد آپدیت

دوستان بعد از اینکه whmcs رو آپدیت کردیم کاربرانی که دامنه تمدید، ثبت و یا سرویسی تهیه میکنن،پس از تکمیل سفارش این ارور رو بهشون نشون میده
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راهنمایی میکنید چیکار باید کرد؟
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exception 'Whoops\Exception\ErrorException' with message 'require_once(): Failed opening required '/home/baliqco/public_html/vendor/tecnickcom/tcpdf/include/tcpdf_fonts.php' (include_path='.:/opt/alt/php56/usr/share/pear:/opt/alt/php56/usr/share/php')' in /home/baliqco/public_html/vendor/tecnickcom/tcpdf/tcpdf.php:115
Stack trace:
#0 /home/baliqco/public_html/vendor/whmcs/whmcs-foundation/lib/Utility/Error/Run.php(0): WHMCS\Utility\Error\Run->handleError(64, 'require_once():...', '/home/baliqco/p...', 115)
#1 [internal function]: WHMCS\Utility\Error\Run->handleShutdown()
#2 {main}



این خطاها رو میده