OK, found your problem.... Your query has three parts.
The "Select" part, The "From" part, and the "where" part....
You have stuff in the last two parts, but nothing in "Select" part. And that is because you have selected that it not be shown, which you mentioned before, but without the pics I didn't understand.
Why is that? If you are trying to get the field "TypeInstallation" not to show on your form, then you need to do that on the text box properties for tha field. Your query should have that visible.
Anyway - there has been a lot of miscommunication between us, and that's OK as long as we get your problem fixed eh? .... Check the show box on your query and see if that fixes the problem.
Also, I suggest making it one or the other (English OR French), so as to alleviate confusion by anyone else, including co-workers, who may look at it later. Read up on naming conventions.