Pages randomly go blank, steps need to be repeated multiple times

I’m having a bit of a trouble getting startet with the X Theme:

Many times I click on a link in the Dashboard like “Pages” i.e. the page just goes blank. Re-Loading or going back and repeating the click usually works the second time. But sometimes I need to do this up to 5 or 6 times. The same when I try to upload Images to the media gallery. It feels totally random and sometimes things just work and then I need to repeat it multiple times. This makes the whole process of creating my page painfully slow. I already deleted all WP files from the server and made a fresh Installation but I lost a whole day trying to fix this and need some help please.

The Page I’m working on is http://toomanydisplays.net/

I’m using
PHP 7.1,
WP 5.1.1,
Cornerstone 3.5.4
Envira Gallery 1.8.5.7

Ok after Reinstalling everything seems to work but I get a HTTP Error when uploading images. Looks like the images get uploaded but there is no thumbnail. This only occurs after installing the X Theme. Any Ideas?

PHP 7.3,
WP 5.1.1,
Themeco 6.5.6,
Cornerstone 3.5.5
Slider Revolution 5.4.8.3

And I also can’t download the demo content anymore -.-

Hello Dennis,

Thank you for the very detailed post information. Usually, a blank screen or loading screen would probably because you have exhausted your PHP memory limit. By default, WordPress will attempt to increase memory allocated to PHP to 40MB (code is at the beginning of /wp-includes/default-constants.php) for single site and 64MB for multisite, so the setting in wp-config.php should reflect something higher than 40MB or 64MB depending on your setup.

​We recommend that you increase your memory allocated to PHP. To increase it, please edit your wp-config.php file and insert these lines:

define( 'WP_MEMORY_LIMIT', '256M' );
define( 'WP_MAX_MEMORY_LIMIT', '512M' );

You can add it before the line
/*That's all, stop editing! Happy Blogging. */

We would loved to know if this has work for you. Thank you.

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