My problem was solved. I took snmp.yml that bruins0437 posted in first post and that the decision! Default snmp.yml not worked.
Also I tried to generate my own snmp.yml with Mikrotik.mib modules, built snmp generator e.t.c. and than tried to us it, snmp exporter shows me multiple parse errors.

Hello everyone. I have completed all the steps, but it seems that it is not working correctly. In the Grafana dashboard, it does not automatically detect the instance IP address. However, if I manually enter the IP address of MikroTik, some dashboard information appears... but actually very little i...