Some error`s

Hello, I encounter these errors in the Appearance>Widget section, and I want to know if it affects the functionality of my site and if so, how to fix this problem,I will attach a picture of the errors, thank you

Attachments:

You must be logged in to view attached files.

Hello,

Try to install the Classic Widgets plugin to fix this problem
https://wordpress.org/plugins/classic-widgets/

Best Regards.

[Author]

Posts