Mpdf\MpdfException: Temporary files directory "/opt/devs_historicar/dev4/vendor/mpdf/mpdf/src/Config/../../tmp/mpdf" is not writable in /opt/devs_historicar/dev4/vendor/mpdf/mpdf/src/Cache.php:21
Stack trace:
#0 /opt/devs_historicar/dev4/vendor/mpdf/mpdf/src/ServiceFactory.php(67): Mpdf\Cache->__construct()
#1 /opt/devs_historicar/dev4/vendor/mpdf/mpdf/src/Mpdf.php(1083): Mpdf\ServiceFactory->getServices()
#2 /opt/devs_historicar/dev4/system/helpers/mpdf_helper.php(64): Mpdf\Mpdf->__construct()
#3 /opt/devs_historicar/dev4/application/controllers/visualizador.php(136): mpdf_create_report()
#4 /opt/devs_historicar/dev4/system/core/CodeIgniter.php(364): visualizador->pdf()
#5 /opt/devs_historicar/dev4/index.php(206): require_once('/opt/devs_histo...')
#6 {main}