Error when saving settings

This works for me

/**

• Save plugin settings.
  *
• @return void
  *
• @since 2.0.0
  */
  public static function save_options() {
  $nonce = isset( $_POST[‘mfm-settings-save-nonce’] ) ? sanitize_key( wp_unslash( $_POST[‘mfm-settings-save-nonce’] ) ) : ”;
  if ( ! current_user_can( ‘manage_options’ ) || ! wp_verify_nonce( $nonce, ‘mfm-settings-save’ ) || ! isset( $_POST[‘mfm-settings’] ) ) {
  return;
  } $expected = Settings_Helper::get_mfm_settings();
  $posted_raw = wp_unslash( $_POST[‘mfm-settings’] ); // phpcs:ignore WordPress.Security.ValidatedSanitizedInput.InputNotSanitized
  $posted = is_array( $posted_raw ) ? $posted_raw : array(); $sanitize_value = static function( $value ) {
  if ( is_array( $value ) ) {
  return array_map( static function( $v ) {
  return is_scalar( $v ) ? sanitize_text_field( (string) $v ) : ”;
  }, $value );
  }
  return is_scalar( $value ) ? sanitize_text_field( (string) $value ) : ”;
  }; if ( isset( $posted[‘scan-hour’] ) ) {
  $posted_hour = sprintf(
  ‘%02d’,
  is_numeric( $posted[‘scan-hour’] ) ? (int) $posted[‘scan-hour’] : (int) Settings_Helper::get_settings_default_value( ‘scan-hour’ )
  ); $posted_am_pm_raw = isset( $posted['scan-hour-am'] ) ? (string) $posted['scan-hour-am'] : (string) Settings_Helper::get_settings_default_value( 'scan-hour-am' ); $posted_am_pm = strtoupper( $posted_am_pm_raw ); $posted_scan_time = $posted_hour . ':00' . ' ' . $posted_am_pm; // phpcs:ignore Generic.Strings.UnnecessaryStringConcat.Found $current_hour = sprintf( '%02d', (int) get_site_option( MFM_PREFIX . 'scan-hour', Settings_Helper::get_settings_default_value( 'scan-hour' ) ) ); $current_am_pm = strtoupper( (string) get_site_option( MFM_PREFIX . 'scan-hour-am', Settings_Helper::get_settings_default_value( 'scan-hour-am' ) ) ); $current_scan_time = $current_hour . ':00' . ' ' . $current_am_pm; // phpcs:ignore Generic.Strings.UnnecessaryStringConcat.Found $posted_freq = isset( $posted['scan-frequency'] ) ? (string) $posted['scan-frequency'] : (string) Settings_Helper::get_settings_default_value( 'scan-frequency' ); if ( 'weekly' === $posted_freq ) { $posted_day_raw = isset( $posted['scan-day'] ) ? $posted['scan-day'] : Settings_Helper::get_settings_default_value( 'scan-day' ); $current_day_raw = get_site_option( MFM_PREFIX . 'scan-day', Settings_Helper::get_settings_default_value( 'scan-day' ) );$posted_scan_time .= ' ' . Settings_Helper::convert_to_day_string( $posted_day_raw ); $current_scan_time .= ' ' . Settings_Helper::convert_to_day_string( $current_day_raw );} if ( $posted_scan_time !== $current_scan_time ) { do_action( MFM_PREFIX . 'scan_time_updated', $current_scan_time, $posted_scan_time ); Settings_Helper::clear_scan_schedule(); } } foreach ( array_keys( $expected ) as $expected_key ) {
  if ( array_key_exists( $expected_key, $posted ) ) {
  $value = $sanitize_value( $posted[ $expected_key ] );
  if ( ! Settings_Helper::save_setting( $expected_key, $value ) ) {
  self::$settings_validation_errors[] = $expected_key;
  add_action( ‘admin_notices’, array( CLASS, ‘settings_cannot_save_notice’ ) );
  return;
  }
  } else {
  if ( ! Settings_Helper::save_setting( $expected_key, ‘no’ ) ) {
  self::$settings_validation_errors[] = $expected_key;
  add_action( ‘admin_notices’, array( CLASS, ‘settings_cannot_save_notice’ ) );
  return;
  }
  }
  } add_action( ‘admin_notices’, array( CLASS, ‘settings_saved_notice’ ) );
  }