Why do orders get lost when paying through Robokassa?

Question

opencart

opencart version 3. There is an official module from Robokassa. Payment goes through, everything is OK, only orders fly to the missing ones. And when paying in other ways, everything is ok.

Answer 1

because the robokassa does not return the status of the order. in general, this glitch was solved for version 2.3, why in 3 again it is necessary to ask the author of the module.