Folder: INBOX; Error: Array to string conversion

[lucasalexandre75000-sketch]

Hello,

We are experiencing the following intermittent error when fetching emails from our mailbox:

The issue occurs randomly and is not reproducible on demand. Most email retrieval operations complete successfully, but from time to time the following error appears:

Folder: INBOX; Error: Array to string conversion; File: C:\Appl\freescout\overrides\webklex\php-imap\src\Query\Query.php (323)

We have not yet identified any specific sender, message type, attachment, or mailbox action that consistently triggers the error.

Has anyone experienced a similar issue? Could this be related to a particular email structure, IMAP response, custom field, or a compatibility issue with PHP 8.3 and the php-imap library?

Any guidance on how to further troubleshoot or identify the offending message would be greatly appreciated.

Thank you for your assistance.

PHP version: 8.3.14
FreeScout version: 1.8.220
Database: MySQL 9.1.0
Are you using CloudFlare: No
Are you using non-official modules: No

[freescout-help]

You can add some debugging to C:\Appl\freescout\overrides\webklex\php-imap\src\Query\Query.php

https://github.com/freescout-help-desk/freescout/wiki/Debugging