Hello There,
A white screen usually means there is a fatal PHP error. Can you please enable WP_DEBUG mode? You can do this by opening wp-config.php
and adding
define( 'WP_DEBUG' , true );
just above /* That's all, stop editing! Happy blogging. */
For example:
define('WP_DEBUG', true);
/* That's all, stop editing! Happy blogging. */
When you revisit the page with the white screen, you should have some error output describing the issue in more detail.
Please let us know how it goes.
Thanks.