Uncaught Error: Class 'RWMB_Helpers_String'

[eduardo-cardillo]

Um erro do tipo E_ERROR foi causado na linha 321 do arquivo /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-content/plugins/meta-box/inc/functions.php. Mensagem de erro: Uncaught Error: Class 'RWMB_Helpers_String' not found in /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-content/plugins/meta-box/inc/functions.php:321
Stack trace:
#0 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-content/plugins/meta-box/inc/core.php(51): rwmb_get_registry('meta_box')
#1 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-includes/class-wp-hook.php(286): RWMB_Core->register_meta_boxes('')
#2 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-includes/class-wp-hook.php(310): WP_Hook->apply_filters(NULL, Array)
#3 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-includes/plugin.php(465): WP_Hook->do_action(Array)
#4 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-settings.php(525): do_action('init')
#5 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-config.php(94): require_once('/home/storage/1...')
#6 /home/storage/1/9f/4a/xxxxxxxx/public_html/weberium/wp-load.php(37): require_once('/home/storage/1...')
#7 /home/storage/1/9f/4