Hi,
look at the table -what entries are in it?
try to select without where-statement. add 1 where-statement by another to figure out what line causing the error. sometimes leading 0 or SPACE in the ID field can be the issue.
go to transacion SE16 and enter your conditions. if you find something you should find something via programm too. If not - watch the data convertions to internal format.
regards
Stefan Seeburger