Any PHP V8 Compatibility update?

[jinsmn]

I am encountering a compatibility issue with the Swlabs HolyCross Theme that uses the Unyson Framework Plugin. After updating the web server to PHP 8, the website has broken due to this plugin's incompatibility with the new PHP version. Specifically, the Unyson Framework does not seem to be compatible with PHP 8, causing critical issues and rendering the website unusable.

Problem:
The website was functioning correctly before the PHP upgrade, but after the server was updated to PHP 8, the website stopped working.
Upon investigation, it seems that the Unyson Framework (which is used by the Swlabs HolyCross Theme) is causing the problem due to deprecated or incompatible functions in PHP 8.
The issue may be related to deprecated functions such as create_function(), along with other potential compatibility issues that are no longer supported in PHP 8.
Request:
I am seeking assistance or a potential solution to resolve this issue and restore the website functionality. Specifically, I am looking for one of the following:

An updated version of the Unyson Framework or Swlabs HolyCross plugin that supports PHP 8.
A patch or instructions on how to modify the existing code to make it compatible with PHP 8.
Recommendations for alternative solutions or plugins that provide similar functionality as Unyson Plugin and Swlabs HolyCross Theme while being fully compatible with PHP 8.