Both sites need to be running the same version of SRM for a start. You can upgrade live then upgrade production and during this window I have seen the SRM continues to work but it isn't recommended by VMware to leave it in this state.
Could you confirm the exact version of the VC, ESXi hosts and SRM at each site. SRM versions no longer tie in with the ESXi / VC versions so I am not sure what your Recovery site is running.
Graham | User Moderator | https://virtualg.uk