Serialization of 'Closure' is not allowed

Question

I created a form on the frontend that allows users to upload their profile photos:

<form method="post" accept-charset="UTF-8" enctype="multipart/form-data">
    {{ csrfInput() }}
    <input type="hidden" name="action" value="users/save-user">
    <input type="hidden" name="redirect" value="users/{{ currentUser.username }}">
    <input type="hidden" name="userId" value="{{ currentUser.id }}">

    <input type="file" name="photo">
    <input type="submit" value="upload">
</form>

But I get the following error:

Serialization of 'Closure' is not allowed from /Users/rain/dev/valet/tr3ndsideas/vendor/yiisoft/yii2-queue/src/serializers/PhpSerializer.php

Any ideas on how to fix this problem?

Answer 1

I found the problem which is because of a plugin called "Scout". I just update it and everything seems to be fine now.