Sorry, I was missing other templates that you made for downloading file,
However, the 'Search' form submit template doesn't seem to work, I found that input scripts for 'From', 'To' form field got problem , the input dates must be between 12/21~12/22/2015 , then it will work to fetch a list of result, so I've changed the input scripts .
In regards to downloading file, I'm thinking that 'Documents_2' element has a problem in the content transformation scripts, you can't set it as FULL path then further use it for file name of downloading , instead, you only use 'Tid' element assigning as file name is good. even when running the project, 'Documents_2' element still can't be found.
See the attached new project, 'Tid' has been assigned into file nam transformation scripts in 'Zip_download' form submit template, it works fine for me at run-time.