wp_get_referer causes 502 error

Hello

Woocommerce Orders page => Search returns 502 (Nginx)
Search url is:
=======
https://mysite.com/wp-admin/edit.php?s=186488&post_status=all&post_type=shop_order&_wpnonce=4183ee1ec3&_wp_http_referer=%2Fwp-admin%2Fedit.php%3Fs%3D186488%26post_status%3Dall%26post_type%3Dshop_order%26action%3D-1%26m%3D0%26_customer_user%26paged%3D1%26action2%3D-1&action=-1&m=0&_customer_user=&paged=1&action2=-1
=======
the trouble causing part is:
&_wp_http_referer=%2Fwp-admin%2Fedit.php%3Fs%3D186488%26post_status%3Dall%26post_type%3Dshop_order%26action%3D-1%26m%3D0%26_customer_user%26paged%3D1%26action2%3D-1

when deleted from request, returns no error

when plugin disabled, returns no error (and that part is not in the request)

is there a way to disable passing _wp_http_referer, or any other idea re. this problem

also returns 502 when disabling the plugin or other plugins – and does not return error when the plugin is disabled (but I can live with that, just mentioning it in case there is any communality)

Thank you