Hello,
OK, just go ahead and upgrade your frameworks (OpenEars, Rejecto and RapidEars) to the current versions before we troubleshoot more, since the upgrade versions fix relevant issues. The current version of OpenEars can be downloaded from here:
https://politepix.com/openears/
and you can get the current versions of the plugins at the same link you were emailed when you requested the demos originally via this site.