Error Number: 9(9) Subscript out of range

Hi,

I have come to start up a DeltaV workstation this morning and I am getting the following error that i have never seen before:-

Error Number: 9(9) Subscript out of range.

On one screen and on the other i am getting this

Reset Operator Interface

The picture just loaded into the main window is not a main window picture.
Functions that would normally replace the picture in the main window will no longer work.

Would you like to open the default layout now to reset the operator interface environment?

Does anyone have any thoughts?

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