Privatbank payment in installments does not receive a response

Previously, they made revisions on Privatbank payment in installments 2015094033 A link is sent to the client, then the bank gives an answer and you need to switch the process to stage X http://crm.mebelok.com/admin/customorder/protsessi-kassira/1455455/edit/ A link was sent to the client, the client paid (if you follow the link, it says that it was paid) But the process did not switch further http://crm.mebelok.com/admin/shop/workflowstatus/1236/action/new/ https://prnt.sc/vg2hrh I did not find the answer of the bank in the logs, there is an assumption that something is being transmitted wrong, so the answer from the bank does not come. Tell me what's the problem.