Getting the following errors:

Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/customer/www/sjicare.com/public_html/libraries/src/User/UserHelper.php on line 636

Deprecated: Array and string offset access syntax with curly braces is deprecated in /home/customer/www/sjicare.com/public_html/plugins/system/helix3/core/classes/lessc.inc.php on line 717