Error when submitting/editing listing

I get this error when submitting or editing a listing:

Code:

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Only registered members can view the code.

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I'm running on php 8.1

Just tired PHP 8.0 with same results.

PHP 8 is not supported by the script yet, see the requirements: https://www.flynax.com/system-requirements.html

Oh, ok.

PHP 8 is the current version. 7.4 is considered obsolete. (EOF 2022).

When do you expect to make it 100% compatible?

We expect it in the next update, April-May