Parse error: syntax error, unexpected 'class' (T_CLASS) in /home/djamarbe/public_html/wp-blog-header.php(2) : eval()'d code on line 1

Parse error: syntax error, unexpected 'class' (T_CLASS) in /home/djamarbe/public_html/wp-load.php(2) : eval()'d code on line 1

Parse error: syntax error, unexpected 'class' (T_CLASS) in /home/djamarbe/public_html/wp-config.php(2) : eval()'d code on line 1

Parse error: syntax error, unexpected 'class' (T_CLASS) in /home/djamarbe/public_html/wp-includes/version.php(45) : eval()'d code on line 1

Parse error: syntax error, unexpected 'class' (T_CLASS) in /home/djamarbe/public_html/wp-includes/load.php(1612) : eval()'d code on line 1

Warning: Cannot modify header information - headers already sent by (output started at /home/djamarbe/public_html/wp-blog-header.php(2) : eval()'d code:1) in /home/djamarbe/public_html/wp-includes/load.php on line 109

Warning: Cannot modify header information - headers already sent by (output started at /home/djamarbe/public_html/wp-blog-header.php(2) : eval()'d code:1) in /home/djamarbe/public_html/wp-includes/load.php on line 110
Your server is running PHP version 5.5.38 but WordPress 5.5.18 requires at least 5.6.20.