Warning: Unsupported declare 'strict_types' in /home/adminsurvey/public_html/vendor/nesbot/carbon/src/Carbon/Traits/Localization.php on line 3

Parse error: syntax error, unexpected '?', expecting variable (T_VARIABLE) in /home/adminsurvey/public_html/vendor/nesbot/carbon/src/Carbon/Traits/Localization.php on line 39