Thanks for your reply, @esmi.
– I deactivated all plugins. This allows me to post comments if I select the post from the “all posts” page, but comments cannot be posted nor read from the post itself (so only admins and editors could post and read comments, I think). If I try to read or post a comment from the post, I get again the “Oops! That page can’t be found.” page.
– Cannot decide which is the default theme. When I started the blog (one week ago) there were three themes to choose from. Now I went to the themes page again, found the same three themes, could not know which one was default.
– Tried PhpMyAdmin, but it says I must look for the active_plugins row in the option_name column, but there is not such a row, even if I activate again some plugins and refresh the PhpMyAdmin page.
– Tried FileZilla, but when adding my domain it shows the following:
Resolving address of mydomain.com
Status: Connecting to 108.167.181.69:21…
Status: Connection established, waiting for welcome message…
Response: 220———- Welcome to Pure-FTPd [privsep] [TLS] ———-
Response: 220-You are user number 3 of 150 allowed.
Response: 220-Local time is now 10:16. Server port: 21.
Response: 220-IPv6 connections are also welcome on this server.
Response: 220 You will be disconnected after 15 minutes of inactivity.
Command: AUTH TLS
Error: Connection timed out after 20 seconds of inactivity
Error: Could not connect to server
– How can I access the folders to delete? Should I do that before downloading WordPress again? I am willing to start the blog again from scratch if it will solve the problem, but do not know how to do it.
I have looked at several forums, and nobody seems to have a similar problem. I have been stuck with this for three days by now.