Fatal error: Uncaught TypeError: call_user_func_array(): Argument #1 ($callback) must be a valid callback, function "new_excerpt_length" not found or invalid function name in /home/c7996956/public_html/shimizukaoru.com/wp-includes/class-wp-hook.php:308
Stack trace:
#0 /home/c7996956/public_html/shimizukaoru.com/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#1 /home/c7996956/public_html/shimizukaoru.com/wp-includes/formatting.php(3923): apply_filters()
#2 /home/c7996956/public_html/shimizukaoru.com/wp-includes/class-wp-hook.php(308): wp_trim_excerpt()
#3 /home/c7996956/public_html/shimizukaoru.com/wp-includes/plugin.php(205): WP_Hook->apply_filters()
#4 /home/c7996956/public_html/shimizukaoru.com/wp-includes/post-template.php(431): apply_filters()
#5 /home/c7996956/public_html/shimizukaoru.com/wp-includes/post-template.php(396): get_the_excerpt()
#6 /home/c7996956/public_html/shimizukaoru.com/wp-content/themes/Gopress/loop-entry.php(30): the_excerpt()
#7 /home/c7996956/public_html/shimizukaoru.com/wp-includes/template.php(785): require('/home/c7996956/...')
#8 /home/c7996956/public_html/shimizukaoru.com/wp-includes/template.php(718): load_template()
#9 /home/c7996956/public_html/shimizukaoru.com/wp-includes/general-template.php(204): locate_template()
#10 /home/c7996956/public_html/shimizukaoru.com/wp-content/themes/Gopress/archive.php(30): get_template_part()
#11 /home/c7996956/public_html/shimizukaoru.com/wp-includes/template-loader.php(106): include('/home/c7996956/...')
#12 /home/c7996956/public_html/shimizukaoru.com/wp-blog-header.php(19): require_once('/home/c7996956/...')
#13 /home/c7996956/public_html/shimizukaoru.com/index.php(17): require('/home/c7996956/...')
#14 {main}
thrown in
/home/c7996956/public_html/shimizukaoru.com/wp-includes/class-wp-hook.php on line
308