Thank you for yor quick reply – those plugins iv installed:
Advanced Database Cleaner
AJAX Search for WooCommerce (Premium)
Autoptimize
Captcha Code
GDPR Cookie Consent
Disable Cart Fragments
Disable Gutenberg
Disable REST API
Elementor Pro
Elementor
ElementsKit Lite
Facebook for WooCommerce
FileBird
Google Tag Manager
Mailchimp for WooCommerce
MC4WP: Mailchimp for WordPress
Redirection
ShortPixel Image Optimizer
Simple Back To Top
Woo Products Widgets For Elementor
WooCommerce AJAX Products Filter
WooCommerce Stripe-Gateway
Germanized für WooCommerce
heidelpay WooCommerce
WooCommerce Side Cart Premium
Wirecard Checkout Page
WooCommerce
WooCommerce Email Customizer with Drag and Drop Email Builder
Wordfence Security
Yoast SEO
WooCommerce Multi-Step Checkout Pro
Any experience with those – by the way it worked 4 days ago