Thank you for your help, I really apreciate it, but unfortunately still I have the problem.
I want to explain everything again so you can undrestand better what is the problem.
I can install every plugin and extension except slider revolution, I tried to install it from X dashboard extensions but it keep saying (Error encountered) i tried it on wampp and xampp, I checked the php version in wampp too,
there are 3 php directories inside wamp64 ===> bin ===> php directory:
they are all fine and should work good with X.
I think, until slider revolution is not installed correctly the demos which has been used this plugin will not be imported.
EX: When i try to import demo (integrity 1) which has a nice slider at top, it keeps saying (we are sorry the demo failed to finish importing)
-- I tried different ways, even i downloaded the slider revolution from themePunch site, I copied the revsliderv18.104.22.168 to plugins folder, then i activated it then i got this error
"Plugin could not be activated because it triggered a fatal error."
-- Inside X-package we have extensions too, so i unzipped the the revslider from there and copied it on my plugins directory. then I activated the plugin successfully, but its not working, it is showing that there is a newer version available when i try to update it gives me this error:
"Update Failed: Internal Server Error"
I have the error log but i couldent undrestand what is it saying, check it yourself.
I am in a big trouble please help me how can i fix it?
what is the different between this extension and others?
do i need to change anything or install anything or check anything?