As workaround you can change wassup plugin file (wp-content/plugins/wassup/lib/main.php) by adding extra error handling in 2065 line:
if(!is_wp_error($api_remote)) {
if (!empty($api_remote['body'])) {
$apidata = $api_remote['body'];
} elseif (!empty($api_remote['response'])) {
$apidata = "no data";
}
$api_method='wp_remote_get'; //debug
} else {
// display error?
};
I hope this could help.