Can xibo run without any internet connection?

i already try to my player. but seems not working. it cant run without internet. the player will go to default screen forever. please help.

The amount of content that Players will cache is determined by the ‘Send files in advance?’ setting which is on the General tab of the Settings page. This determines how many seconds into the future the calls to RequiredFiles should look. By default this is set to 2 days so you would need to increase this setting in seconds to suit.

what if i make it 1 year++ ?? is it possible? what the effect that i will facing if i make it 1 year++ ?? player storage effect or what ? thank you.