It is obvious the user is kind of a newbie. You don’t need to make anything from scratch in WordPress as every single page and post has a “Revisions” feature that allows you to go back to a previous version.
I can say I use Modula on all my customers’ websites, and it works nicely. Sometimes it eats more RAM than it should. But it is sad to see reviews like this that provide no further explanation.
Thank you very much!!
I can confirm it is working now and the messages are not shown anymore.