It is strongly recommended that you always use the latest stable version of Joomla to ensure all known bugs and security issues are fixed. The template will only function properly on Joomla 3.6 and later versions.
To prevent problems with used components and installation freezes use the following settings:

• PHP 7.01 or PHP 7.1 or PHP 7.2
• MySQLi 5.5+ (5.6 suggested)
• cURL library must be installed on your server  (the Php_curl.dll file  must be loaded by your server)
• PostgreSQL 9+

Note! Supports for PHP 5.6 ended.

Our SP Page Builder component requires at least PHP 5.6 or later. We strongly recommend using 7.0.x.
To use QuickStart please use these PHP settings:

• memory_limit --> at least 64M (128MB)
• memory_limit = 128MB (256MB suggested)
• max_execution_time --> at least 240 (by default is set to 30 seconds only.)
• Magic Quotes GPC off

These settings of PHP are strongly recommended for Joomla! in order to ensure full compatibility and website security with the latest version of Joomla!. In most cases, those values can be changed in php.ini or .htaccess file. Please contact your web hosting service provider to be sure that your server complies with the requirements or to ask them where/how to change the above PHP settings.

Browser

We suggest using the latest version of Firefox, Safari, Chrome, Opera or Edge. 

Note! Internet Explorer version 9 and older are NOT supported anymore even by Microsoft company.