TOPIC: On my demo page its a Blank screen

On my demo page its a white screen
I did change the flash to HTML any ideas?

onairradio.net/demos/2/top-charts


Warning: require_once(/home/onairradio/public_html/demos/2/libraries/joomla/document/html/renderer/head.php): failed to open stream: No such file or directory in /home/onairradio/public_html/demos/2/templates/rt_hadron/error.php on line 146

Fatal error: require_once(): Failed opening required '/home/onairradio/public_html/demos/2/libraries/joomla/document/html/renderer/head.php' (include_path='.:/opt/cpanel/ea-php72/root/usr/share/pear') in /home/onairradio/public_html/demos/2/templates/rt_hadron/error.php on line 146

Hello,
Blank screen means that there's error on the page.
Could You please enable error reporting in Joomla settings?

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; plgSystemJomsocialUpdate has a deprecated constructor in /home/onairradio/public_html/demos/2/plugins/system/jomsocialupdate/jomsocialupdate.php on line 15

Deprecated: Function create_function() is deprecated in /home/onairradio/public_html/demos/2/plugins/system/rokupdater/lib/local/RokUpdater/Container.php on line 214

Deprecated: Function create_function() is deprecated in /home/onairradio/public_html/demos/2/plugins/system/rokupdater/lib/local/RokUpdater/Container.php on line 214

Deprecated: Function create_function() is deprecated in /home/onairradio/public_html/demos/2/plugins/system/rokupdater/lib/local/RokUpdater/Container.php on line 214

Deprecated: Function create_function() is deprecated in /home/onairradio/public_html/demos/2/plugins/system/rokupdater/lib/local/RokUpdater/Container.php on line 214

Warning: require_once(/home/onairradio/public_html/demos/2/libraries/joomla/document/html/renderer/head.php): failed to open stream: No such file or directory in /home/onairradio/public_html/demos/2/templates/rt_hadron/error.php on line 146

Fatal error: require_once(): Failed opening required '/home/onairradio/public_html/demos/2/libraries/joomla/document/html/renderer/head.php' (include_path='.:/opt/cpanel/ea-php72/root/usr/share/pear') in /home/onairradio/public_html/demos/2/templates/rt_hadron/error.php on line 146

You can see that there's fatal error with file:

Fatal error: require_once(): Failed opening required '/home/onairradio/public_html/demos/2/libraries/joomla/document/html/renderer/head.php

Never mind google shows as unsafe script.