CCS: LAMP web-app testing & improving where necessary - App project

Mobile app project description

The bad thing: I can give the contract only to one supplier
The good thing: The application itself might be interesting for your business anyway

About the Software:
I developed and deployed it using a LAMP stack with Ubuntu: Apache/2.4.18 | MySQL 5.7.11-0ubuntu6 | PHP7.0.8-0Ubuntu0.16.04.3 and I used jQuery with tinyMCE and datatables, SJCL, GnuGP, PHPmailer ...

Functionality:
It's a Digital Workplace solution for project collaboration & communication with a locally distributed team.
It has Work-Breakdown-Structure assigned discussion-threads, a virtual ShopFloorManagement for a week-based overview and a SCRUM-like part for suggesting and assigning new tasks & sharing information about the work-items. Files can be selected and/ or uploaded and attached to the postings "on-the-fly" - and will then be available in the project's DataTable.

About:
A non-for-profit Organization which is focused on helping to improve the situation for the people in Africa is asking for a business-plan for further funding of my new project - and the CCS software which shall be improved to ensure functionality is part of that project.

Deadline for the next round is the 31.may 2017 - so the deadline for this request for proposal is the 27.may 2017. (a rough estimation with a range is better than nothing - and as mentioned before: You might consider the app to be useful for your own business, so your time might be well invested anyway).

Status:
The fully functional beta is available via Sourceforge:
https://sourceforge.net/projects/c-c-s/


If you have any questions/ need help about the project or about the application:
do not hesitate and ask your questions!

Thank You for your precious time!

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For more clarity, I simply paste the copied answer I gave to an interested Software -Developer-Team (thanks Umbrella for the question!)

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Question Repeat: You wanted to know, how much new functionality shall be added to the source code
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I-Message: Thanks for your fast response - and thank you for the feedback that obviously some information is missing!
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Appeal: Please, keep on asking if something is unclear.
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Hello, please allow me to keep it short:

A) At the current state I am happy with the functionality of the CYBR CSCW-SUITE (CCS) app - I do not need to add something.
B) What I need is: testing. And based on the tests there might come up some improvements that have to be done. For example: You find a security hole -> then: fix it. Or, the database query or the array is of bad quality and creates a bottleneck at a certain load of users working with the application at once -> if the scenario is reasonable: improve it.

I simply need to guarantee to the investor who is funding the project, that the application we depend on is secure & fully functional, even under heavy load.
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