FormIt 5.2.3-pl causes HTTP 500 on MODX 3 / PHP 8.4.4

[druid-77]

Bug report

Summary

FormIt 5.2.3-pl causes HTTP 500 on MODX 3 / PHP 8.4.4

Step to reproduce

1. Install FormIt 5.2.3-pl via Package Manager
2. Open website frontend
3. Site returns HTTP 500 error

Observed behavior

After updating FormIt, the entire site returns HTTP 500 error.
Logs show:

• Serialization of 'Closure' is not allowed
• var_export does not handle circular references

Reverting to previous version fixes the issue.
Issue occurs immediately after installation/update, no custom code required.

Expected behavior

Website should load normally after updating FormIt.

Environment

MODX 3
PHP 8.4.4
FormIt 5.2.3-pl
Database: (MySQL/MariaDB version if known)
Web server: Apache or Nginx (version if known)
reCAPTCHA not used
Issue reproduced on both local and production environments