Reservation of ReachFrequencyPrediction not working.

[monitotxi]

The method ReachFrequencyPrediction::reserve() throws an exception 'Array to string conversion' on line 116.

$response->getContent() returns an associative array with the ID of the prediction, but it's typecasted to a string.

[pruno]

@monitotxi, can you provide a code to reproduce this?

[monitotxi]

@pruno For an existing prediction (with an existing API instance):

use FacebookAds\Object\ReachFrequencyPrediction;

$prediction_id = 'XXX';
$adaccount_id = 'XXX';
$prediction = new ReachFrequencyPrediction($prediction_id, $adaccount_id);
$prediction->reserve(); //throws the exception