EntityMalformedException Error

Problem/Motivation

After upgrading my Drupal site to version 7.101, I encountered the following issues:

• EntityMalformedException: Missing bundle property on entity of type file. in entity_extract_ids() (line 8130 of /myfile/includes/common.inc).
• 500 AJAX error when pressing the upload button.

I am using PHP 8.1 with Drupal 7.

Steps to reproduce

1. Upgrade the Drupal site to version 7.101.
2. Attempt to upload a file.
3. Observe the 500 AJAX error.

Proposed resolution

I would appreciate guidance on resolving the EntityMalformedException error and the 500 AJAX error encountered during the file upload process.

Remaining tasks

Identify the root cause of the EntityMalformedException and the 500 AJAX error. Implement a fix or provide a workaround for these issues.

User interface changes

None anticipated.

API changes

None anticipated.

Data model changes

None anticipated.

Release notes snippet

After upgrading to Drupal 7.101, users may encounter an EntityMalformedException and a 500 AJAX error during file uploads. Further investigation and a fix are needed.