Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, class Lifeline2\Classes\Header does not have a method "_category" in /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/includes/Helpers/Common.php:218
Stack trace:
#0 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/includes/Helpers/Common.php(218): call_user_func()
#1 [internal function]: Lifeline2\Classes\Header->page()
#2 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/includes/Helpers/Common.php(86): call_user_func()
#3 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/includes/Classes/Header.php(63): Lifeline2\Classes\Header->makeBannerData()
#4 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/includes/Loader.php(104): Lifeline2\Classes\Header->banner()
#5 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/class-wp-hook.php(324): Lifeline2\Loader::banner()
#6 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters()
#7 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/plugin.php(517): WP_Hook->do_action()
#8 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/general-template.php(3082): do_action()
#9 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/header.php(12): wp_body_open()
#10 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/template.php(810): require_once('/home/mahadahme...')
#11 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/template.php(745): load_template()
#12 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/general-template.php(48): locate_template()
#13 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/index.php(2): get_header()
#14 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/template.php(812): require('/home/mahadahme...')
#15 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/template.php(745): load_template()
#16 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/general-template.php(206): locate_template()
#17 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/archive.php(2): get_template_part()
#18 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-includes/template-loader.php(106): include('/home/mahadahme...')
#19 /home/mahadahmed/domains/iskaashi.nl/public_html/wp-blog-header.php(19): require_once('/home/mahadahme...')
#20 /home/mahadahmed/domains/iskaashi.nl/public_html/index.php(17): require('/home/mahadahme...')
#21 {main}
thrown in /home/mahadahmed/domains/iskaashi.nl/public_html/wp-content/themes/lifeline2/includes/Helpers/Common.php on line 218
