MapServer Cluster, problem with GetFeatureInfo

I’m new with MapServer and I tried to use as cluster.
When I click on the map to see info about my points, nothing pop up. I can see info about different layers but not for the one with the cluster.

Layer with the cluster:

LAYER
NAME "eqp_point_collecte"
GROUP "eqp_dechet"
TYPE POINT
TEMPLATE "ttt"
CONNECTIONTYPE postgis
PROCESSING "CLOSE_CONNECTION=DEFER"
CONNECTION "user=${PGUSER} password=${PGPASSWORD} dbname=${PGDATABASE} host=${PGHOST} port=${PGPORT}"
DATA "geom FROM (select * from ${PGSCHEMA_GEODATA}.eqp_point_collecte) as foo USING UNIQUE gid USING srid=2056"
METADATA
    "wfs_title" "eqp_point_collecte" ##REQUIRED
    "wfs_srs" "EPSG:2056" ## REQUIRED
    "wfs_enable_request" "*"
    "wfs_include_items" "all"
    "wms_title" "eqp_point_collecte" ##REQUIRED
    "wms_srs" "EPSG:2056" ## REQUIRED
    "wms_enable_request" "*"
    "wms_include_items" "all"
    "gml_include_items" "all"
    "ows_enable_request" "*"
    "ows_geom_type" "point" # For returning geometries in GetFeatureInfo
    "ows_geometries" "geom" # For returning geometries in GetFeatureInfo
    "ows_title" "eqp_point_collecte"
    "gml_types" "auto"
    "gml_featureid" "gid" ## REQUIRED
    "gml_geometries" "geom"
    "gml_geom_type" "point"
END
DUMP TRUE # For GetFeatureInfo
STATUS ON
PROJECTION
  "init=epsg:2056"
END
CLASSITEM "Cluster_FeatureCount"
EXTENT 2470000 1110000 2840000 1200000
#SYMBOLSCALE 500
MAXSCALEDENOM 25000
###########################
# Define the cluster object
###########################
PROCESSING "CLUSTER_GET_ALL_SHAPES=ON"
PROCESSING "ITEMS=gid"
CLUSTER
  MAXDISTANCE 30
  ##########################################################
  ### TIPS : MAXDISTANCE > SIZE du symbole évite les bugs###
  ##########################################################
  REGION "ellipse"
END
################################
# Class1: For the cluster symbol
################################
CLASS
    NAME "Déchetterie"
    EXPRESSION ("[Cluster_FeatureCount]" != "1" AND '[type_collecte]' = 'déchetterie')
    STYLE
       SIZE 20
       SYMBOL "déchetterie"
       COLOR 255 0 0
    END
END
CLASS
    NAME "Eco-point"
    EXPRESSION ("[Cluster_FeatureCount]" != "1" AND '[type_collecte]' = 'écopoint')
    STYLE
       SIZE 20
       SYMBOL "éco point"
       COLOR 255 0 0
    END
END
################################
# Classes: For single stations
################################
CLASS
    NAME "PET"
    EXPRESSION ('[type_dechet]' = 'PET')
    STYLE
       SYMBOL "PET" 
       SIZE 20
       OUTLINEWIDTH 0.05
       OUTLINECOLOR 240 175 55
       COLOR 255 255 255    
    END
END