Mail Merge Reports

Hi, I've downloaded/uploaded the CDE components to my webserver as instructed and changed the config setting to point to that folder. The Generate PDF button appears but when I attempt to create a PDF i get a blank file. I have found the following in my server log files, any assistance greatly appreciated: Server RHEL 6 PHP 5.4.45 Apache 2.2.15 Sugar 7.5.20 Pro Jan 12 13:10:28 caster httpd: PHP Warning: filesize(): stat failed for /data/web-data/cde-libreoffice-pdf/cde-root/home/GEN-26184603-6d7c-7fe6-bb8a-56946ed478a1.pdf in /data/web-data/sugar-production/modules/DHA_PlantillasDocumentos/Generate_Document.php on line 586 Jan 12 13:10:28 caster httpd: PHP Warning: readfile(/data/web-data/cde-libreoffice-pdf/cde-root/home/GEN-26184603-6d7c-7fe6-bb8a-56946ed478a1.pdf): failed to open stream: No such file or directory in /data/web-data/sugar-production/modules/DHA_PlantillasDocumentos/Generate_Document.php on line 591 Jan 12 13:24:05 caster httpd: PHP Warning: filesize(): stat failed for /data/web-data/cde-libreoffice-pdf/cde-root/home/GEN-f12a1655-2de2-d870-21d4-569471255bc5.pdf in /data/web-data/sugar-production/modules/DHA_PlantillasDocumentos/Generate_Document.php on line 586 Jan 12 13:24:05 caster httpd: PHP Warning: readfile(/data/web-data/cde-libreoffice-pdf/cde-root/home/GEN-f12a1655-2de2-d870-21d4-569471255bc5.pdf): failed to open stream: No such file or directory in /data/web-data/sugar-production/modules/DHA_PlantillasDocumentos/Generate_Document.php on line 591 Jan 12 13:26:18 caster httpd: PHP Warning: filesize(): stat failed for /data/web-data/cde-libreoffice-pdf/cde-root/home/GEN-90c46b21-8640-0e4f-a25e-56947200629b.pdf in /data/web-data/sugar-production/modules/DHA_PlantillasDocumentos/Generate_Document.php on line 586 Jan 12 13:26:18 caster httpd: PHP Warning: readfile(/data/web-data/cde-libreoffice-pdf/cde-root/home/GEN-90c46b21-8640-0e4f-a25e-56947200629b.pdf): failed to open stream: No such file or directory in /data/web-data/sugar-production/modules/DHA_PlantillasDocumentos/Generate_Document.php on line 591