problem Function create_function() is deprecated

Hello together,

my web has been giving me this warning since few months, and i have totally no idea how to repair it and what the posible reason can be.

[https://deyizhiyizhi.com/](https://deyizhiyizhi.com/)

it keeps saying

Function create\_function() is deprecated in /home2/deyizhj1/public\_html/wp-includes/plugin.php

anyone has any idea?

thanks in advance!

 

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