Fatal Error found

Hi,

I had the same issue with Link Whisper Free 0.9.4 and Elementor.

The fatal error happens because the plugin calls this method:

Wpil_Editor_Elementor::appendProcessableValue()

but this method is not declared in the plugin files.

The error is in:

wp-content/plugins/link-whisper/core/Wpil/Editor/Elementor.php

In my case, the issue happened when saving an Elementor page. Link Whisper tried to process the Elementor content and crashed because the method was missing.

Temporary fix:

I added the missing method inside the Wpil_Editor_Elementor class in:

core/Wpil/Editor/Elementor.php

Code added:

private static function appendProcessableValue(&$processable_data, ...$values)
{
    if (!is_array($processable_data)) {
        $processable_data = array();
    }

    foreach ($values as $value) {
        if (is_array($value)) {
            foreach ($value as $sub_value) {
                self::appendProcessableValue($processable_data, $sub_value);
            }
            continue;
        }

        if (is_object($value)) {
            $value = wp_json_encode($value);
        }

        if (is_scalar($value)) {
            $value = trim((string) $value);

            if ($value !== '') {
                $processable_data[] = $value;
            }
        }
    }

    return $processable_data;
}

After adding this method, Elementor pages could be saved again.

Please note: this is only a temporary patch because it modifies a plugin core file. It may be overwritten during a future Link Whisper update. The best solution would be an official fix from the plugin author.