2019-08-06 20:44:58,353 [ERROR] OAuthRestFilter [RBPM] An error occurred while attempting to contact the authentication service.
This sounds like a broken / not configured RBPM SAML authentication.
In the idapps.out log file, on startup, do you see something like:2019-09-13 16:06:54,161 [ERROR] OAuthFilter [RBPM] Missing private…
So has this ever worked?
If not, check for certificates.
OSP Cert - self signed
Tomcat Cert - usually publicallly signed
eDir tree CA Cert - usually not trusted.
NAM SAML Cert - usually self signed.