Cannot find TTF TrueType font file

Cannot find TTF TrueType font file "Sun-ExtA.ttf" in configured font directories in /wp-content/plugins/gravity-forms-pdf-extended/vendor/mpdf/mpdf/src/Fonts/FontFileFinder.php on line 33

When viewing a PDF, if you receive an error about a missing font file you'll just need to run the Core Font Installer. The error will be resolved once all Core Fonts have been successfully installed.