1.8.142 Undefined variable $customer error appears in the logs once in a while

[sofl88]

After the update, we sometimes get the following message spammed in the logs. It happens like every 5-6 seconds for an interaction, one of our staff is doing (around 40 entries in 3 minutes). Unfortunatly I wasn't able to reproduce this myself yet.

Undefined variable $customer (View: /www/#####/resources/views/conversations/partials/thread.blade.php) (View: /www/#####/resources/views/conversations/partials/thread.blade.php) {"userId":4,"email":"#####","exception":"[object] (ErrorException(code: 0): Undefined variable $customer (View: /www/#####/resources/views/conversations/partials/thread.blade.php) (View: /www/#####/resources/views/conversations/partials/thread.blade.php) at /www/#####/storage/framework/views/65bc05ae41ba6e27bd83be1602cb4cda86c743c8.php:114, ErrorException(code: 0): Undefined variable $customer (View: /www/#####/resources/views/conversations/partials/thread.blade.php) at /www/#####/storage/framework/views/65bc05ae41ba6e27bd83be1602cb4cda86c743c8.php:114, ErrorException(code: 0): Undefined variable $customer at /www/#####/storage/framework/views/65bc05ae41ba6e27bd83be1602cb4cda86c743c8.php:114)

PHP version: 8.0.30
FreeScout version: 1.8.142
Database: MariaDB 10.5.25
Are you using CloudFlare: No
Are you using non-official modules: Yes

Thanks in advance