Wordpress - Plugins not working - white blank page. What to do?

Question

CMS

Hello dear friends!
Faced a strange problem when using CMS Wordpress (version 3.9 is installed) - when trying to add third-party plugins to the site (downloading from the official site) regardless of their version (tested on 4 or 5 different plugins with different versions and it's not about compatibility) - their icon appears in the management (administration) console, but clicking on any menu item or clicking on the plugin itself leads to a blank page (white screen). In the case of the Event List plugin, for example URL /wp-admin/admin.php?page=el_admin_about , a blank page opens. Other menu items work fine. The plugin itself is activated in the menu. What can be wrong? Thank you!

Answer 1

View error logs. Or turn them on:

error_reporting(E_ALL);
ini_set('display_errors', 1);

If you don't want to poke around in the errors of other people's plugins, then just look for a replacement for it.

Answer 2

Well, then 3.9 is a rather old version. It's been 4.x for a long time

Answer 3

Update WP core to 4.6.1, update Twenty Twelve to the latest version, enable the error log, deactivate all plugins and then enable them sequentially and watch the error log.

Answer 4

Find the connection point for googlefonts fonts, change to https. or generate a new link to the font in the Google service - there has long been https by default.