Hi friends4ever,

Probably you are experiencing the error commonly known as white screen of death.
Most probable reasons for that are exhausted the memory limit, plugin related issues or theme related issues.

In order to increase the memory limit edit the wp-config.php file on your WordPress site. It is located in your WordPress site’s root folder. You need to paste this code in wp-config.php file define(‘WP_MEMORY_LIMIT’, ‘256M’); right after the line define(‘WP_DEBUG’, false);.

If this is not fixing the problem deactivate all plugins.
There are two methods for disabling your plugins. One requires you to use FTP, and the other requires you to use phpMyAdmin.

After you log in to FTP, go to plugins folder and rename it to something like plugins_old and create a new, empty folder labeled plugins. Move the plugins one by one from the plugins_old folder to plugins, and activate them individually.

To deactivate all plugins using phpMyAdmin you need to log in to your web hosting dashboard. Navigate to your website database then click on the wp_options table. Inside wp_options table find the option ‘active_plugins’ and then click on the Edit. Change the option_value field to a:0:{} and then click on Go to save your changes.

If after you have deactivated every plugin on your site, you’re still getting a white screen, next step should be to change your WordPress theme to one of the default WordPress themes.

More information you can find on the WordPress official documentation page.

Best,
JovanaV