I got this error installing a fresh Rhino Kickstart

Deprecated: Array and string offset access syntax with curly braces is deprecated in /home2/gopenet/public_html/libraries/vendor/joomla/string/src/phputf8/utils/unicode.php on line 46

Warning: Cannot modify header information - headers already sent by (output started at /home2/gopenet/public_html/libraries/vendor/joomla/string/src/phputf8/utils/unicode.php:46) in /home2/gopenet/public_html/includes/framework.php on line 34

Deprecated: Directive 'allow_url_include' is deprecated in Unknown on line 0