Asset view & is invalid

What causes this issue?

When the program was being carried out, the system determined that the
asset view &V1&, which you are presently using, is not numerically
defined. This can only occur, if you have incorrectly valued the
parameter AVW in you user master record (only values from 1 to 6 are
allowed).

System Response

The transaction is cancelled.

How to fix this error?

Correct your user parameter AVW in the user master record.
This procedure guarantees that the correct value is used when you
subsequently log on to the system.

Error message extract from SAP system. Copyright SAP SE.