Must be a valid instance of one of these clauses: :and, :or, :not, :<, :<=, :>, :>=, :=, :!=

I have a problem with field filter variable. As this exemple below :

select * from my_table
where {{column_uuid}} AND {{column_text}}

Both of two variables type is Fields filter based on columns in my_table.
However, the query works only with variable column_text but not works when I add a value of uuid.
The query works either without any variable.
For exemple :
column_uuid value : b6d4e796-6dbb-9900-8c2d-feb4fecaa616
column_text value : AZER123456
Can you give me a hand ?