[SOLVED] Problem Viewing Invoice in Back Office

[cjrent]

Running Prestashop 1.5.4.1

PHP 5.6..3

 

When in the Back Office, when View Invoice is selected...the following error comes up on the page that is loaded, has anyone seen this before?  I have no idea what's going on.  The referenced php file was never edited or modified in any way.  When I test the site in xampp it works fine.  I tried re-uploading the file, and I've cleared smarty cache and compile.

 

Warning: array_push() expects parameter 1 to be array, null given in /home/XXXXX/public_html/tools/tcpdf/tcpdf.php on line 23119

Warning: Invalid argument supplied for foreach() in /home/XXXXX/public_html/tools/tcpdf/tcpdf.php on line 24388

Warning: Invalid argument supplied for foreach() in /home/XXXXX/public_html/tools/tcpdf/tcpdf.php on line 24420

Warning: Cannot modify header information - headers already sent by (output started at /home/XXXXX/public_html/tools/tcpdf/tcpdf.php:23119) in /home/XXXXX/public_html/tools/tcpdf/tcpdf.php on line 8961
TCPDF ERROR: Some data has already been output to browser, can't send PDF file

Edited October 25, 2017 by cjrent (see edit history)

[El Patron]

Hi, it appears your shop is running in prestashop debug mode.  I recommend setting this to false.  It should be enabled only during active debug.  

https://www.prestashop.com/forums/topic/224525-how-to-turn-on-error-reporting-for-debug-information-blank-page-500-internal-server-error/

[cjrent]

El Patron, You Are Amazing.  I had completely forgotten I turned that on.  I cannot thank you enough.  It's been driving me crazy.