NMS-0004: Unable to register MIB or MIB row. snmp error

	I've installed snmp on 6 servers, but one of them gives that error when I try to
        start the snmp process (lsnrctl dbsnmp_start). It's the only database version 7.2.2.
	The others are V. 7.3.3.

	I'm wondering.


	Thanks for answering.

	Pierre