PHP error and message format is not changed

Hello. Php error detected – https://i.imgur.com/4PnM6jS.png

About the format of the message in the post. When I change it and publish it on the social network, the changes do not take effect – https://i.imgur.com/H6EdiTp.png

Sends the default settings to https://i.imgur.com/Yo3SYZz.png.

But when you change the message in the settings, the record still shows old data.

p.s. When will it be set up in Vkontakte?

Thank you.

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