Fatal error: Uncaught Error: Undefined constant "is_archive" in /home/xs564413/pionlife.com/public_html/wp-content/themes/pion/functions.php:311
Stack trace:
#0 /home/xs564413/pionlife.com/public_html/wp-includes/class-wp-hook.php(324): ogp('')
#1 /home/xs564413/pionlife.com/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#2 /home/xs564413/pionlife.com/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#3 /home/xs564413/pionlife.com/public_html/wp-includes/general-template.php(3064): do_action('wp_head')
#4 /home/xs564413/pionlife.com/public_html/wp-content/themes/pion/header.php(14): wp_head()
#5 /home/xs564413/pionlife.com/public_html/wp-includes/template.php(810): require_once('/home/xs564413/...')
#6 /home/xs564413/pionlife.com/public_html/wp-includes/template.php(745): load_template('/home/xs564413/...', true, Array)
#7 /home/xs564413/pionlife.com/public_html/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
#8 /home/xs564413/pionlife.com/public_html/wp-content/themes/pion/archive.php(1): get_header()
#9 /home/xs564413/pionlife.com/public_html/wp-includes/template-loader.php(106): include('/home/xs564413/...')
#10 /home/xs564413/pionlife.com/public_html/wp-blog-header.php(19): require_once('/home/xs564413/...')
#11 /home/xs564413/pionlife.com/public_html/index.php(17): require('/home/xs564413/...')
#12 {main}
thrown in /home/xs564413/pionlife.com/public_html/wp-content/themes/pion/functions.php on line 311