I used the following snip of code to up date a field like firstname and Lastname BASE ON cid
now I am trying to use the same code to pulL in a sitename base on the site #
but I keep getting the following error

Function Argument value, type, or count is invalid

-- snip of code---
sele sites
seek allt(this.value)
If !found()
wait wind "SITE# not found" NOWAIT
NODEFAULT &&will prevent the focus from leaving the entry box
Endif
thisform.refresh &&will update the display of field values
--- end of code snip ---

What am I missing?

Mike D.