We deployed the SDC of the master code on March 9. When entering the SDC login page from ONAP, the login fails, and the following message is prompted:

Problem accessing /sdc1/portal. Reason:

Autherization error

I checked the logs in the docker container of SDC Fe and found the following errors.

2020-03-12T05:52:25.994Z|||qtp1685538367-9||SDC-FE||ERROR|||sdc-fe.onap||org.onap.sdc.security.CipherUtil||ActivityType=<?>, Desc=<encrypt failed>
java.lang.IllegalArgumentException: Missing argument
at javax.crypto.spec.SecretKeySpec.<init>(SecretKeySpec.java:93)

.......

2020-03-12T05:52:25.994Z|||qtp1685538367-9||SDC-FE||ERROR|||sdc-fe.onap||o.o.sdc.fe.servlets.PortalServlet||ActivityType=<?>, Desc=< Cookie Encryption failed : java.lang.IllegalA
2020-03-12T05:52:25.994Z|||qtp1685538367-9||SDC-FE||ERROR|MAJOR||sdc-fe.onap||o.o.s.c.config.EcompErrorLogUtil||ActivityType=<?>, Desc=<Error when trying to access FE Portal page
2020-03-12T05:52:25.994Z|||qtp1685538367-9||SDC-FE||ERROR|||sdc-fe.onap||o.o.sdc.fe.servlets.PortalServlet||ActivityType=<?>, Desc=<Error during getting portal page: Committed>
2020-03-12T05:52:25.995Z|||qtp1685538367-9||SDC-FE||INFO|||sdc-fe.onap||o.o.l.f.base.AbstractAuditLogFilter||ActivityType=<?>, Desc=<Exiting.>

Please help to analyze the cause of the problem. Thank you very much