That object group error is unfortunately common. Nevertheless all MIB specifications having such an error violate the SMIv2 standard and must be fixed (often a newer, fixed version is already available and just need to be downloaded).
See also: https://agentpp.com/services/mibdesign.html
To make it very clear: This is not a bug/error in AgenPro or SNMP4J-SMI-PRO or any other SNMP tool, the bug is in the MIB module (thus in its specification document)
To work around this issue temporarily you may activate the lenient compile mode in SNMP4J-SMI-PRO but this could cause other errors down the stream because important and mandatory MIB information will not be found and you then may get NullPointerExceptions later when accessing the MIB data.