Backtrace from fatal error 'Uncaught Error: Object of class WP_Error could not be converted to string in /domains/concertzender.eu/DEFAULT/wp-content/themes/cz-new-theme/includes/facebook-script-and-graph.php:96 Stack trace: ' at /domains/concertzender.eu/DEFAULT/wp-content/themes/cz-new-theme/includes/facebook-script-and-graph.php 96:

0 /domains/concertzender.eu/DEFAULT/wp-includes/class-wp-hook.php(324): CZTheme\Facebook->open_graph('')
1 /domains/concertzender.eu/DEFAULT/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
2 /domains/concertzender.eu/DEFAULT/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
3 /domains/concertzender.eu/DEFAULT/wp-includes/general-template.php(3064): do_action('wp_head')
4 /domains/concertzender.eu/DEFAULT/wp-content/themes/cz-new-theme/header.php(138): wp_head()
5 /domains/concertzender.eu/DEFAULT/wp-includes/template.php(810): require_once('/domains/concer...')
6 /domains/concertzender.eu/DEFAULT/wp-includes/template.php(745): load_template('/domains/concer...', true, Array)
7 /domains/concertzender.eu/DEFAULT/wp-includes/general-template.php(48): locate_template(Array, true, true, Array)
8 /domains/concertzender.eu/DEFAULT/wp-content/themes/cz-new-theme/archive.php(17): get_header()
9 /domains/concertzender.eu/DEFAULT/wp-includes/template-loader.php(106): include('/domains/concer...')
10 /domains/concertzender.eu/DEFAULT/wp-blog-header.php(19): require_once('/domains/concer...')
11 /domains/concertzender.eu/DEFAULT/index.php(17): require('/domains/concer...')
12 {main} thrown

1. calling ()
2. calling ()
3. calling ()
4. calling ()
5. calling ()
6. calling ()
7. calling ()
8. calling ()
9. calling ()
10. calling ()
11. calling ()
12. calling ()
13. calling ()