The ORCA enhanced version is maintained by the ORCA team, so you’ll have to post for support at https://orcaforum.kofo.mpg.de I’m afraid.
The current normal version of Avogadro 2, available from https://two.avogadro.cc, has pretty good support for ORCA output files though, and receives a lot of bugfixes and improvements, so it works well on modern systems.
If you download Avogadro 2 and find it doesn’t support something that your output files contain, definitely open a feature or bug request here. ORCA is one of the programs used most often with Avogadro I believe, so there’s a strong desire to make Avogadro as good at working with ORCA results as possible.