http-Error when uploading Pictures

Hey folks,

hope you can help me out.

Since a few weeks the upload of pictures fails with the message “http-Error” and the uploaded file doesnt show up in the media database, though a grey nothing takes a spot there. I tried to shortcut the problem by uploading straight to the server, but that reproduces the problem. On the website the picture (which I am able to select as the grey nothing that it is) doesnt show – on social media accounts as a linked preview it does show up though.

I am pretty unexperienced concering all this and hope to find some solutions here.

### WordPress ###

Version: 5.0.3
Language: de_DE
Permalink structure: /%postname%/
Is this site using HTTPS?: Yes
Can anyone register on this site?: No
Default comment status: open
Is this a multisite?: No
User Count: 1
Communication with www.remarpro.com: www.remarpro.com is reachable
Create loopback requests: The loopback request to your site completed successfully.

### Installation size ###

Uploads Directory: 101.43 MB
Themes Directory: 14.61 MB
Plugins Directory: 61.83 MB
Database size: 7.20 MB
Whole WordPress Directory: 240.35 MB
Total installation size: 247.55 MB

### Drop-ins ###

advanced-cache.php: Advanced caching plugin.
db.php: Custom database class.
object-cache.php: External object cache.

### Active Theme ###

Name: Betheme
Version: 21.0.8
Author: Muffin group
Author website: https://muffingroup.com/
Parent theme: Not a child theme
Supported theme features: editor-style, automatic-feed-links, custom-logo, editor-styles, post-formats, post-thumbnails, title-tag, menus, widgets

### Other themes (1) ###

Twenty Nineteen (twentynineteen): Version 1.2 by the WordPress team

### Must Use Plugins (1) ###

Health Check Troubleshooting Mode: Version 1.5.1

### Active Plugins (10) ###

Add From Server: Version 3.3.3 by Dion Hulse
Antispam Bee: Version 2.9.1 by pluginkollektiv
Classic Editor: Version 1.4 by WordPress Contributors
Cookie Notice: Version 1.2.46 by dFactory
EWWW Image Optimizer: Version 4.6.3 by Exactly WWW
Health Check & Troubleshooting: Version 1.2.5 by The www.remarpro.com community
SEO Redirection: Version 4.16 by Fakhri Alsadi
W3 Total Cache: Version 0.9.7.2 by Frederick Townes
WP Comment Policy Checkbox: Version 0.3.1 by Fco. J. Godoy
Yoast SEO: Version 9.6 by Team Yoast

### Inactive Plugins (1) ###

WPBakery Page Builder: Version 5.4.7 by Michael M - WPBakery.com

### Media handling ###

Active editor: EWWWIO_Imagick_Editor
Imagick Module Version: 1687
ImageMagick Version: ImageMagick 6.9.7-4 Q16 x86_64 20170114 https://www.imagemagick.org
GD Version: 2.2.5
Ghostscript Version: 9.26

### Server ###

Server architecture: Linux 4.9.0-4-amd64 x86_64
Web Server Software: Apache
PHP Version: 7.2.13-1+0~20181207100540.13+stretch~1.gbpf57305 (Supports 64bit values)
PHP SAPI: apache2handler
PHP max input variables: 1000
PHP time limit: 600
PHP memory limit: 256M
Max input time: -1
Upload max filesize: 150M
PHP post max size: 150M
cURL Version: 7.52.1 OpenSSL/1.0.2q
SUHOSIN installed: No
Is the Imagick library available: Yes
htaccess rules: Custom rules have been added to your htaccess file

### Database ###

Extension: mysqli
Server version: 5.7.20-log
Client version: mysqlnd 5.0.12-dev - 20150407 - $Id: 38fea24f2847fa7519001be390c98ae0acafe387 $
Database prefix: wp_

### WordPress Constants ###

ABSPATH: /home/www/wordpress/
WP_HOME: Undefined
WP_SITEURL: Undefined
WP_DEBUG: Disabled
WP_MAX_MEMORY_LIMIT: 256M
WP_DEBUG_DISPLAY: Enabled
WP_DEBUG_LOG: Disabled
SCRIPT_DEBUG: Disabled
WP_CACHE: Enabled
CONCATENATE_SCRIPTS: Undefined
COMPRESS_SCRIPTS: Undefined
COMPRESS_CSS: Undefined
WP_LOCAL_DEV: Undefined

### Filesystem Permissions ###

The main WordPress directory: Writable
The wp-content directory: Writable
The uploads directory: Writable
The plugins directory: Writable
The themes directory: Writable
The Must Use Plugins directory: Writable

The page I need help with: [log in to see the link]