Hi, I think I got attacked and this morning I can not login in my admin and front page, got below error, I have disable plugin in FTP and replace wp-admin wp-includes and root files in FTP but still got below error, any one can help? thanks so much
Fatal error: Uncaught Error: Call to undefined function json_decode() in /home/xxx/public_html/wp-includes/functions.php:4666 Stack trace: #0 /home/xxx/public_html/wp-includes/blocks.php(372): wp_json_file_decode(‘/home/xxx/…’) #1 /home/xxx/public_html/wp-includes/blocks.php(491): get_block_metadata_i18n_schema() #2 /home/xxx/public_html/wp-includes/blocks/legacy-widget.php(68): register_block_type_from_metadata(‘/home/xxx/…’, Array) #3 /home/xxx/public_html/wp-includes/class-wp-hook.php(324): register_block_core_legacy_widget(”) #4 /home/xxx/public_html/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array) #5 /home/xxx/public_html/wp-includes/plugin.php(517): WP_Hook->do_action(Array) #6 /home/xxx/public_html/wp-settings.php(704): do_action(‘init’) #7 /home/xxx/public_html/wp-config.php(104): require_once(‘/home/xxx/…’) #8 /home/xxx/public_html/wp-load.php(50): require_once(‘/home/xxx/…’) #9 /home/xxx/public_html/wp-admi in /home/xxx/public_html/wp-includes/functions.php on line 4666