Blank page with Pro Plugin

Hello

So I get the blank page when I try to edit any site.
I looked at the documentation and found this: https://docs.elementor.com/article/184-cant-edit-with-elementor

I did all those things, enabled the “Switch Editor Loader Method”, increased the PHP memory limit, etc.

I even reinstalled WordPress and just downloaded Elementor plugin and the pro plugin and that is where I noticed that when I have the pro plugin disabled I am able to edit just fine. With the pro plugin enabled I get to the white page.
Following I give you the System Information.

Hopefully someone can help me out as I just purchased the pro version and now this seems to be the reason why it’s not working.

					
== Server Environment ==
	Operating System: Linux
	Software: Apache
	MySQL version: 5.7.21
	PHP Version: 7.1.19-nmm1
	PHP Max Input Vars: 10000
	PHP Max Post Size: 200M
	GD Installed: Yes
	ZIP Installed: Yes
	Write Permissions: All right
	Elementor Library: Connected

== WordPress Environment ==
	Version: 4.9.8
	Site URL: https://f-dietrich.de
	Home URL: https://f-dietrich.de
	WP Multisite: No
	Max Upload Size: 200 MB
	Memory limit: 64M
	Permalink Structure: /%year%/%monthnum%/%day%/%postname%/
	Language: de-DE
	Timezone: Europe/Berlin
	Debug Mode: Active

== Theme ==
	Name: Twenty Seventeen
	Version: 1.7
	Author: the WordPress team
	Child Theme: No

== User ==
	Role: administrator
	WP Profile lang: de_DE
	User Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.81 Safari/537.36

== Active Plugins ==
	Antispam Bee
		Version: 2.8.1
		Author: pluginkollektiv

	Elementor
		Version: 2.2.1
		Author: Elementor.com

	Elementor Pro
		Version: 2.1.7
		Author: Elementor.com

	WP Mail SMTP
		Version: 1.3.3
		Author: WPForms

== Debug ==
	Errors: There are no errors to display