How to clone dump of installed Enterprise Crm

I want to add a new module in crm but i want to test in another copy of dump. how to install it in another server what are changes i have to do.

I followed the https://support.sugarcrm.com/Knowledge_Base/Platform_Management/Cloning_a_Sugar_Instance_for_Testing/

getting this errors:

#0 /usr/share/nginx/crm64/data/SugarBean.php(691): BeanVisibility->addStrategy('ACLVisibility', NULL)
#1 /usr/share/nginx/crm64/data/SugarBean.php(627): SugarBean->addVisibilityStrategy('ACLVisibility')
#2 /usr/share/nginx/crm64/modules/Administration/Administration.php(56): SugarBean->__construct()
#3 /usr/share/nginx/crm64/data/SugarBean.php(381): Administration->__construct()
#4 /usr/share/nginx/crm64/data/BeanFactory.php(144): SugarBean::_createBean('Administration')
#5 /usr/share/nginx/crm64/modules/Administration/Administration.php(323): BeanFactory::getBean('Administration')
#6 /usr/share/nginx/crm64/modules/Trackers/TrackerManager.php(52): Administration::getSettings('tracker')
#7 /usr/share/nginx/crm64/modules/Trackers/TrackerManager.php(88): TrackerManager->setup(false)
#8 /usr/share/nginx/crm64/include/utils.php(3207): TrackerManager::getInstance()