The checker can be easily disabled in processgeometry.c by commenting lines 1779-1783.

However, one should understand that the purpose of this checker is to find a typical error when a part of a universe was forgotten to be defined. If one disables it, then the error message will be given by another checker in the following form

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`No cell at (x,y,z)`

Perhaps, the last error checker can be improved by adding the last found cell number, its universe number and the transformed coordinates for this universe derived from the "real-world" (x,y,z):

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`No cell at (x,y,z). Last found cell is C of universe U, where the transformed coordinates where X',Y'Z'`

P.S. There is a typo by the way: Cell %s has no neighbous with surface %s