400 bad request

Hi all! I trying to get all orders items automatically but sometimes i have next error:


Bad Request


Bad Request


Invalid HTTP Header: "'Root=1-5d930b1a-e0e1ab0ecb5be7840721eda4pingdom.com/)\x7f'"

query was :
{"query":"query($first: Int! $id: String!) {\norder(id: $id) {\nrequest_id\ncomplexity\ndata {\nline_items(first: $first) {\npageInfo {\nhasNextPage\nhasPreviousPage\nstartCursor\nendCursor\n}\nedges {\nnode {\nid\nlegacy_id\nsku\nquantity\nprice\nproduct_name\nfulfillment_status\nquantity_pending_fulfillment\nquantity_shipped\nwarehouse\nquantity_allocated\nbackorder_quantity\nwarehouse_id\nlocked_to_warehouse_id\nsubtotal\nbarcode\n}\ncursor\n}\n}\n}\n}\n}","variables":{"id":"T3JkZXI6MTA1MDYxMTQ0","first":1}}

But i dont change headers in my request and i didnt sent it. Why i get this error sometimes? It`s blocked me