BBES does not launch when loading Electrical module

I haven't seen that type of error in quite some time, but I think it typically refers to some type of permissions issue. Can you double-check that you have read/write permissions to your workspace's \medata folder along with C:\Program Files (x86)\Bentley\AECOsimBuildingDesigner V8i Ss5\AECOsimBuildingDesigner\ServerApp\bin?

Also, from that last folder, what happens if you manually double-click on BBES.EXE? That's the database server for ABD Electrical.

Checked the permissions thing from an earlier post, no joy. Launching BBES.exe directly: same result.

Error log:

==================================
BBES Database Server Error Log
==================================

---------------------------------------------------------------------------------
In order to analyse the problem asap, we kindly ask you to describe the
circumstances under which the error occured.
---------------------------------------------------------------------------------
Circumstances :

---------------------------------------------------------------------------------
Internal Data
---------------------------------------------------------------------------------

OS : Windows NT 6. 1

Build-Info : BBES Database Server, 08.11.07.21
Date : 27/05/15
Time : 08:38:25 AM

BIN : C:\Program Files (x86)\Bentley\AECOsimBuildingDesigner V8i Ss5\AECOsimBuildingDesigner
DATA : C:\ProgramData\Bentley\AECOsimBuildingDesigner V8i Ss5\WorkSpace_SS5\BuildingDatasets\Dataset_GB
PROJECTS : C:

Subsystem : BASE
Function : ARRAYGET
Error-Code : (2)
Argument : 1

CallStack :
DGNREGDIALOG:INIT (5)
ELCOCADCOM:OPENCADDIALOG (29)
ELCOCADCOM:IPCDISPATCH (130)
ELCOCADWINDOW:DISPATCH (19)
STARTELCOCAD (192)
APP:START (132)
START (0)

Checked the permissions thing from an earlier post, no joy. Launching BBES.exe directly: same result.

Error log:

==================================
BBES Database Server Error Log
==================================

---------------------------------------------------------------------------------
In order to analyse the problem asap, we kindly ask you to describe the
circumstances under which the error occured.
---------------------------------------------------------------------------------
Circumstances :

---------------------------------------------------------------------------------
Internal Data
---------------------------------------------------------------------------------

OS : Windows NT 6. 1

Build-Info : BBES Database Server, 08.11.07.21
Date : 27/05/15
Time : 08:38:25 AM

BIN : C:\Program Files (x86)\Bentley\AECOsimBuildingDesigner V8i Ss5\AECOsimBuildingDesigner
DATA : C:\ProgramData\Bentley\AECOsimBuildingDesigner V8i Ss5\WorkSpace_SS5\BuildingDatasets\Dataset_GB
PROJECTS : C:

Subsystem : BASE
Function : ARRAYGET
Error-Code : (2)
Argument : 1

CallStack :
DGNREGDIALOG:INIT (5)
ELCOCADCOM:OPENCADDIALOG (29)
ELCOCADCOM:IPCDISPATCH (130)
ELCOCADWINDOW:DISPATCH (19)
STARTELCOCAD (192)
APP:START (132)
START (0)