App - Script

Hi
Good evening everyone,

I have tried everything but I can’t generate a PDF document. I can not go through this error.
Compilation error, your logs : /tmp/tmp.0kYXHADVTq/main.log
In the logs writes! Latex Error: Missing \ Begin Document.
Please give me some hint where to move.

you have to say
\documentclassarticle
\begindocument
content
\enddocument