6700 Internal error: A move between incompatible string types was requested of the ISF subsystem.
Is returned when a move of a byte, character or ynet string to an incompatible destination string is requested. This is possibly caused by a mismatch of strings types. For example, moving a byte string to a character string.
The ISF subsystem. Most likely the isfcalc routine.
If the problem persists, notify your Support Representative.