How do I delete the post split into pages after deleting the plugin?

As these are page breaks, so you have to clear these manually.

But page breaks are not displayed in the Gutenberg editor

You may install and use classic editor plugin for this cleanup. This plugin is older than Gutenberg so we have to do this arrangement.

I would suggest manual cleanup instead of cleanup with code using php. In case of any mistake, you might will lose content.

@blogolizator You can also remove the page breaks with Keep Backup Daily plugin Find & Replace here is the reference video I hope it will help you.

https://youtu.be/ansjb1Bhs7I

The classic editor also doesn’t display page breaks

This is one of the worst plugins I’ve ever tried. After installation, it divides all posts into pages and there is no way to set the division on certain posts. The entire structure of posts was immediately disrupted. When I removed the plugin, all the posts remained divided into pages. I had to make a backup, but this did not help – the divisions remained in the posts. Now you will have to check each post to make sure that they are displayed correctly. I don’t understand, is this a problem in the free version or in the paid version too? I almost bought the plugin, but I don’t even know what problems I might face after purchasing it.

@blogolizator i can understand your frustration. Please wait for a few hours, i will come back with a solution. There should be an option within this plugin so if someone want to clear the page breaks, he can do that. This kind of requirement appeared for the very first time, that’s why this feature was missing. I hope you can wait a little.

And about being worst for this plugin, every plugin goes through the improvement process. Same with this one, i appreciate that you brought it to my attention.

@blogolizator this feature has been added as “Uninstall” tab on settings page. Kindly update your version and try. Thank you @abdulrazzaq4085.

Thank you for trying to solve the problem. Let’s see what message outputs the plugin https://joxi.ru/xAeg0pvIgj0xqm?d=1

But at the same time, there are traces of the plugin in the posts, which are not removed in any way.
https://joxi.ru/nAyv8abTj1ZMxr?d=1
https://joxi.ru/LmG9DY5sJ3M1JA?d=1
https://joxi.ru/MAjElvbcx5zOO2?d=1

I haven’t used <!–nextpart–> / <!–next page–> tags before. These are the consequences of installing your plugin. And I have been trying to solve this problem for several days. So far, no results.

Don’t you think if I have added this feature so finally I will be able to get it resolved? I appreciate your patience, please wait.

@blogolizator If you haven’t used these “<!–nextpart–> / <!–nextpage–>” to split a post then please share a short video of your post edit page and post view page an also mention the place where the page is splitting into parts.

Thanks

@blogolizator this video is private and could not view. Please make video public.

Thanks

done