Ap.Muthu

``` # php -v PHP 5.3.3-7+squeeze17 with Suhosin-Patch (cli) (built: Aug 26 2013 07:26:12) Copyright (c) 1997-2009 The PHP Group Zend Engine v2.3.0, Copyright (c) 1998-2010 Zend Technologies ```

The issue is that both the backup buttons are unclickable in Debian 8 with PHP 7.

The screenshot is of CentOS 7.3 with PHP 7 from webtatic where it works perfectly. Different means of installing PHP7 in Debian 8: [Shiji Jiang](https://shiji.info/blog/2016/en/99) [Compiling PHP from Source](https://docs.moodle.org/22/en/Compiling_PHP_from_source) [NixCraft](https://www.cyberciti.biz/faq/installing-php-7-on-debian-linux-8-jessie-wheezy-using-apt-get/)

There is no json response when clicked. FireFox v37.0.2 on WinXP SP3.

My existing FireFox version works well with the CentOS 7.3.1611 and webtatic PHP 7.0 and hence this should not be an issue.

Browser Display  

Excel Report Rendering  The worksheet name is mangled.

Poor rendering of PDF reports in both browser and external reader  

``` Although: ட + ு = டு 0B9F + 0BC1 the following is displayed: ட ு ``` Ila.Sundaram font is used but all Unicode fonts like Akshar, etc have the...