3261831 - BPC Web client Access error - 500 Internal Server Error, sap.epm.ui.common.ServiceProxy

User gets an error right away when logging in with the web client:
500 Internal Server Error, sap.epm.ui.common.ServiceProxy
Ocp response: No element defined, sap.epm.ui.common.registry.pak.ContextProvider

500 SAP Internal Server Error
ERROR: The current application has triggered a termination with a short dump. (termination: RABAX_STATE)
The call of URL http://xxxxx/sap/bw/cs/subrest was terminated due to an error.
 Folgender Fehlertext wurde im System GED prozessiert:
The current application has triggered a termination with a short dump.
Der Fehler trat auf dem Applikationsserver GARNICR3T_GED_00 und im Workprozess 2 auf.
Die Abbruchart war: RABAX_STATE
Die ABAP-Aufrufhierarchie war:
Method: CREATE_CONTAINER of program CL_RSSH_SHOW_LOG==============CP
Method: SHOW_MESSAGES_WRITE_LOG of program CL_RSSH_SHOW_LOG==============CP
Method: CHECK of program CL_RSSH_HIERARCHY_FUNC========CP
Method: ERROR of program CL_RRHI_HTAB_CURSOR===========CP
Method: CHECK of program CL_RRHI_INCL_CREATOR==========CP
Method: _INCL_READ_VIRT of program CL_RSR_HIERARCHY_BUFFER=======CP<<)>BR>
Method: CONSTRUCTOR of program CL_RSR_HIERARCHY_BUFFER=======CP
Method: HIERARCHY_GET of program CL_RSR_HIERARCHY_BUFFER=======CP
Form: COMPLETE_HIEDIR of program SAPLRRHIForm: TRANSIENT_HIEDIR_GET of program

KBA , BW-PLA-BPC-ADM-DIM , BPC - Master Data & Hierarchy Maintenance , Problem