Bad Gateway 502 nginx after Logout

Hello,

we are getting a 502 Bad Gateway nginx error when users logout via the Ultimate Member Logout function (not when I logout in the WordPress dashboard).

We are not using nginx caching!

Here the install information:

### Begin Install Info ###

## Please include this information when posting support requests ##


--- Site Info ---

Site URL:					https://productinfo.falkentyre.com
Home URL:					https://productinfo.falkentyre.com
Multisite:					No

--- Hosting Provider ---

Host:						DBH: localhost:3306, SRV: productinfo.falkentyre.com

--- User Browser ---

Platform:                 Apple 
Browser Name:             Chrome  
Browser Version:          113.0.0.0 
User Agent String:        Mozilla/5.0 (Macintosh; Intel Ma 
			  c OS X 10_15_7) AppleWebKit/537.
                          36 (KHTML, like Gecko) Chrome/11
                          3.0.0.0 Safari/537.36
                          
---- Current User Details --

Role: administrator


--- WordPress Configurations ---

Version:						6.2.2
Language:					en_US
Permalink Structure:			/%postname%/
Active Theme:				Child Theme for Divi 1.0
Page On Front:				Tyre Range (#158)
Page For Posts:				 (#0)
ABSPATH:					/var/www/vhosts/productinfo.falkentyre.com/httpdocs/
All Posts/Pages:				4
WP Remote Post:           		wp_remote_post() works
WP_DEBUG:                 			Disabled
WP Table Prefix:          			Length: 6, Status: Acceptable
Memory Limit:   				256MB


--- UM Configurations ---

Version:						2.6.1
Upgraded From:            		2.6.0
Current URL Method:			
Cache User Profile:			Yes
Generate Slugs on Directories:	Yes
Force UTF-8 Encoding: 		No
JS/CSS Compression: 			No
Port Forwarding in URL: 		No
Exclude CSS/JS on Home: 		No


--- UM Pages Configuration ---

User:						https://productinfo.falkentyre.com/user/
Account:						https://productinfo.falkentyre.com/account/
Members:					https://productinfo.falkentyre.com/members/
Register:						https://productinfo.falkentyre.com/register/
Login:						https://productinfo.falkentyre.com/login/
Logout:						https://productinfo.falkentyre.com/logout/
Password Reset:				https://productinfo.falkentyre.com/password-reset/


--- UM Users Configuration ---

Default New User Role: 		um_partner
Profile Permalink Base:		user_login
User Display Name:			full_name
Redirect author to profile: 		No
Enable Members Directory:	No
Use Gravatars: 				No
Require a strong password: 	On


--- UM Access Configuration ---

Panic Key: 								
Global Site Access:						Site accessible to Logged In Users
Custom Redirect URL:						/login
Exclude the following URLs:				
Backend Login Screen for Guests:			No
Redirect to alternative login page:			
Backend Register Screen for Guests:		No
Redirect to alternative register page:		
Access Control widget for Admins only: 		No
Enable the Reset Password Limit:			Yes
Reset Password Limit: 3Disable Reset Password Limit for Admins: No
Blacklist Words: 							5


--- UM Email Configurations ---

Mail appears from:					Falken Tyres
Mail appears from address:			[email protected]
Use HTML for E-mails:				Yes
Account Welcome Email:  			No
Account Activation Email:			Yes
Pending Review Email:				No
Account Approved Email: 			No
Account Rejected Email: 			No
Account Deactivated Email:			Yes
Account Deleted Email:				Yes
Password Reset Email:				Yes
Password Changed Email: 			Yes
Account Updated Email:				Yes
New User Notification:				Yes
Account Needs Review Notification:	No
Account Deletion Notification:		No


--- UM Total Users ---

				All Users(10)
administrator(3)
um_partner(7)
none(0)


--- UM Roles ---

				Administrator (administrator)
Editor (editor)
Author (author)
Contributor (contributor)
Subscriber (subscriber)
Partner (um_partner)


--- UM Custom Templates ---

				N/A


--- UM Email HTML Templates ---

				N/A


--- Web Server Configurations ---

PHP Version:              			8.0.28
MySQL Version:            			10.3.38
Web Server Info:          			Apache


--- PHP Configurations ---

PHP Memory Limit:         			256M
PHP Upload Max Size:      			2M
PHP Post Max Size:        			8M
PHP Upload Max Filesize:  			2M
PHP Time Limit:           			30
PHP Max Input Vars:       			1000
PHP Arg Separator:        			&
PHP Allow URL File Open:  			Yes


--- Web Server Extensions/Modules ---

DISPLAY ERRORS:           			N/A
FSOCKOPEN:                			Your server supports fsockopen.
cURL:                     			Your server supports cURL.
SOAP Client:              			Your server has the SOAP Client enabled.
SUHOSIN:                  			Your server does not have SUHOSIN installed.
GD Library:               			PHP GD library is installed on your web server.
Mail:                     			PHP mail function exist on your web server.
Exif:				          PHP Exif library is installed on your web server.


--- Session Configurations ---

Session:                  			Disabled
Session Name:             			PHPSESSID
Cookie Path:              			/
Save Path:                			/var/lib/php/sessions
Use Cookies:              			On
Use Only Cookies:         			On


--- WordPress Active Plugins ---

				Divi Responsive Helper: 2.3.5
Divi Supreme Pro: 4.9.39
Duplicate Page: 4.5.2
Headers Security Advanced & HSTS WP: 5.0.23
Import-Customer-Number: 1.0.0
Supreme Modules Lite - Divi Theme, Extra Theme and Divi Builder: 2.5.2
Ultimate Member: 2.6.1
UpdraftPlus - Backup/Restore: 1.23.4
WP Armour - Honeypot Anti Spam: 2.1.4
WP File Manager: 7.1.9
WP HTML Mail - Email Template Designer: 3.3.7
WP Mail SMTP: 3.8.0
WPML Multilingual CMS: 4.6.3
WPML String Translation: 3.2.5

### End Install Info ###

Please let me know, what you need else from me to fix this problem.

Kind regards
Christian

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