Awak, Apple has dropped 32bit Support with macOSCatalina (10.15). So apps running under macOSCatalina (10.15) must be 64bit. Or can you point out any documentation stating that CP EPS E83.20 is 32bit only ?
If the beta of a new OS X version unsupported by CP EPS E83.20 gives error messages on install, you should never take their content for the undisputed truth as it rather might be a generic error message (installer does not work, so assume no 64bit app).
CCSE / CCTE / CTPS / CCME / CCSM Elite / SMB Specialist