Errors after updating to latest version "Warning: srand() expects parameter 1"

Hey Chris,

thanks for reaching out – I’ll gladly help!
We can’t replicate this issue on our side, but it seems that there is a conversion problem going on. Would you mind replacing the code (line 248) to:
srand((int) $seed);
The whole code segment should look something like this:

function wp_rp_get_default_thumbnail_url($seed = false, $size = 'thumbnail') {
    $options = wp_rp_get_options();
    $upload_dir = wp_upload_dir();
    if ($options['default_thumbnail_path']) {
        return $options['default_thumbnail_path'];
    } else {
        if ($seed) {
            $next_seed = rand();
           srand((int) $seed);
        }
        $file = rand(0, WP_RP_THUMBNAILS_DEFAULTS_COUNT - 1) . '.jpg';
        if ($seed) {
            srand((int) $next_seed);
        }
        return plugins_url('/static/thumbs/' . $file, __FILE__);
    }
}

Please let me know if this solves the error – also, a link to your blog would be much appreciated.

Take care,

Petra