I need your help.
I've WordPress 3.5 and DMS Guestbook 1.17.2.
I didn't check my site for some weeks and noticed today that there are over 60 000 spam entries in the guestbook.
The most urgent problem: I wanted to delete them in the "entries" menu in the WP backend, but it doesn't list a single entry. Just the heading "Entries" and after that: nothing. I'm sure that some timg ago the entry moderation worked. Manually deleting entries in the PhpMyAdmin Menu works, but this can hardly be the solution. What could be wrong with the moderation menu in WP?
The second thing: If that problem hopefully can be solved, how can I prevent spam in the future? I checked the antispam image method, but that doesn't work. The antispam image shows but even if you type the letters correctly in the field it always says that the could was wrong. What can be the problem?
Thank you very much in advance!!