Undefined index: r

Hi Debug Bar Support plugin,

first of all, thank you for making this plugin.

in my local env. i see this error message:

this is the system info:

### WordPress Environment ###

WordPress address (URL): http://wp.woo
Site address (URL): http://wp.woo
WC Version: 4.7.1
REST API Version: ✔ 4.7.1
WC Blocks Version: ✔ 3.8.0
Action Scheduler Version: ✔ 3.1.6
WC Admin Version: ✔ 1.6.3
Log Directory Writable: ✔
WP Version: ❌ 5.6-RC1-49646 - There is a newer version of WordPress available (5.7-alpha-49645)
WP Multisite: –
WP Memory Limit: 256 MB
WP Debug Mode: ✔
WP Cron: ✔
Language: en_US
External object cache: –

### Server Environment ###

Server Info: nginx/1.14.2
PHP Version: 7.4.12
PHP Post Max Size: 8 MB
PHP Time Limit: 30
PHP Max Input Vars: 1000
cURL Version: 7.64.0
OpenSSL/1.1.1g

SUHOSIN Installed: –
MySQL Version: 5.5.5-10.3.25-MariaDB-0+deb10u1
Max Upload Size: 2 MB
Default Timezone is UTC: ✔
fsockopen/cURL: ✔
SoapClient: ❌ Your server does not have the SoapClient class enabled - some gateway plugins which use SOAP may not work as expected.
DOMDocument: ✔
GZip: ✔
Multibyte String: ✔
Remote Post: ✔
Remote Get: ✔

What could be the reason for these error messages?

Kind Regards