Why do we get "message": "error looking up account".

We've got an issue. We had such an issue with a lot of orders.
We placed an order and got this notification at 2022-04-14T16:33:21.033+0000
{ "thirdPartyReference": "95f43170-bc10-11ec-b452-b1271b6b32f4_1", "businessLocationId": 683990721757446, "status": "check_was_updated", "ikentooAccountId": 12350663791314408, "ikentooAccountIdentifier": "A718903.15750", "type": "ORDER" }
So we tried to request the order via the following url:
However, all our requests received the following response:
{ "timestamp": "2022-04-14T16:42:44.989+0000", "status": 404, "error": "Not Found", "message": "error looking up account", "path": "/o/op/1/order/account/12350663791314408/getCheck" }
Even though the order was still active because we could add stuff to it and received success
notifications like the following notification that we got at 2022-04-14T16:47:17.751+0000
{ "thirdPartyReference": "898b3e40-bc12-11ec-a82a-6df32a42d628_1", "businessLocationId": 683990721757446, "status": "success", "ikentooAccountId": 12350663791314408, "ikentooAccountIdentifier": "A718903.15750", "type": "ORDER" }
Please advise and let me know if you need any additional information.