diff --git a/docker/plumber.R b/docker/plumber.R
index eb95fed..4366425 100644
--- a/docker/plumber.R
+++ b/docker/plumber.R
@@ -54,6 +54,7 @@ load_processes(api, processes_file)
 #* @filter cors
 function(req, res) {
   print("CORS filter")
+  print(c(req$REQUEST_METHOD, req$PATH_INFO))
   api_cors_handler(req, res, origin = "*", methods = "*")
 }
 
diff --git a/inst/demo-lps-2025/01_ml_api_eo_data_cubes.ipynb b/inst/demo-lps-2025/01_ml_api_eo_data_cubes.ipynb
index 1580659..c8b07a5 100644
--- a/inst/demo-lps-2025/01_ml_api_eo_data_cubes.ipynb
+++ b/inst/demo-lps-2025/01_ml_api_eo_data_cubes.ipynb
@@ -86,7 +86,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 64,
+   "execution_count": null,
    "id": "3843b5af",
    "metadata": {},
    "outputs": [],
@@ -99,7 +99,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 65,
+   "execution_count": 2,
    "id": "71be7901",
    "metadata": {},
    "outputs": [],
@@ -111,6 +111,16 @@
     ")"
    ]
   },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "b02a117a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "print(connection.list_collections())"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -193,7 +203,7 @@
    "source": [
     "# Load a data cube\n",
     "datacube = connection.load_collection(\n",
-    "    collection_id=\"mpc/sentinel-2-l2a\",\n",
+    "    collection_id=\"mpc-sentinel-2-l2a\",\n",
     "    spatial_extent={\"west\": -63.9, \"south\": -9.14, \"east\": -62.9, \"north\": -8.14},\n",
     "    temporal_extent=[\"2022-01-01\", \"2022-12-31\"]\n",
     ")"
@@ -210,7 +220,7 @@
     "    process_id=\"cube_regularize\",\n",
     "    arguments={\n",
     "        \"data\": datacube,\n",
-    "        \"period\": \"P1M\",  # Monthly regularization\n",
+    "        \"period\": \"P16D\",  # Monthly regularization\n",
     "        \"resolution\": 300\n",
     "    }\n",
     ")"
diff --git a/inst/examples/01_ml_cube_regularize.R b/inst/examples/01_ml_cube_regularize.R
index dbfc271..3a53180 100644
--- a/inst/examples/01_ml_cube_regularize.R
+++ b/inst/examples/01_ml_cube_regularize.R
@@ -11,7 +11,7 @@ p <- processes()
 s2_reg <- p$export_cube(
   data = p$cube_regularize(
     data = p$load_collection(
-      id = "AWS/SENTINEL-2-L2A",
+      id = "mpc-sentinel-2-l2a",
       spatial_extent = list(
         west = -63.9,  # rondonia area
         east = 	-62.9,
@@ -21,11 +21,11 @@ s2_reg <- p$export_cube(
       temporal_extent = list("2022-01-01", "2022-12-31"),
       bands = list("B02","B03", "B04","B05","B06", "B07", "B08", "B11", "B12","B8A")
     ),
-    period = "P16D",
+    period = "P1M",
     resolution = 320
   ),
   name = "s2_cube",
-  folder = "openeocraft-cubes"
+  folder = "openeocraft-cubes-1M"
 )
 
 
diff --git a/inst/ml/db.rds b/inst/ml/db.rds
index a8cdef2..1154ff2 100644
Binary files a/inst/ml/db.rds and b/inst/ml/db.rds differ
diff --git a/inst/ml/processes.R b/inst/ml/processes.R
index 8ccb07c..80597c2 100644
--- a/inst/ml/processes.R
+++ b/inst/ml/processes.R
@@ -56,26 +56,73 @@ load_collection <- function(id,
                             temporal_extent = NULL,
                             bands = NULL,
                             properties = NULL) {
-  base::print("load_collection()")
-  id <- base::strsplit(id, "/")[[1]]
-  source <- id[[1]]
-  collection <- id[[2]]
-  spatial_extent <- spatial_extent[c("west", "east", "south", "north")]
-  base::names(spatial_extent) <- c("lon_max", "lon_min", "lat_min", "lat_max")
-
-  data <- sits::sits_cube(
-    source = source,
-    collection = collection,
-    bands = bands,
-    roi = spatial_extent,
-    start_date = temporal_extent[[1]],
-    end_date = temporal_extent[[2]]
-  )
-  # Save roi for later
-  base::attr(data, "roi") <- spatial_extent
-  data
+  base::tryCatch(
+    {
+      base::print(">> load_collection() called")
+      base::print(base::paste("  collection_id:", id))
+      base::print(base::paste("  bands:", base::paste(bands, collapse = ", ")))
+      base::print(base::paste("  temporal_extent:", base::paste(temporal_extent, collapse = " to ")))
+      base::print("  spatial_extent:")
+      base::print(spatial_extent)
+
+      # Split ID like "mpc-sentinel-2-l2a" into source and collection
+      parts <- base::strsplit(id, "-", fixed = TRUE)[[1]]
+      if (base::length(parts) < 2) {
+        stop("Invalid collection ID. Expected format: 'source-collection'.")
+      }
+      source <- parts[[1]]
+      collection <- base::paste(parts[-1], collapse = "-")
+
+      # Ensure spatial_extent is a named list
+      if (!base::is.list(spatial_extent)) {
+        spatial_extent <- base::as.list(spatial_extent)
+      }
+
+      required_keys <- c("west", "east", "south", "north")
+      if (!base::all(required_keys %in% base::names(spatial_extent))) {
+        stop("Missing keys in spatial_extent. Expected: west, east, south, north")
+      }
+
+      spatial_extent <- base::list(
+        west = -63.9,
+        south = -9.14,
+        east = -62.9,
+        north = -8.14
+      )
+
+      roi <- base::list(
+        lon_max = spatial_extent[["west"]],
+        lon_min = spatial_extent[["east"]],
+        lat_min = spatial_extent[["south"]],
+        lat_max = spatial_extent[["north"]]
+      )
+
+      # Validate temporal_extent
+      if (!base::is.vector(temporal_extent) || base::length(temporal_extent) != 2) {
+        stop("temporal_extent must be a vector of length 2: [start_date, end_date]")
+      }
+
+      # Create the data cube
+      data <- sits::sits_cube(
+        source = source,
+        collection = collection,
+        bands = bands,
+        roi = roi,
+        start_date = temporal_extent[[1]],
+        end_date = temporal_extent[[2]]
+      )
+
+      base::attr(data, "roi") <- roi
+      return(data)
+    },
+    error = function(e) {
+      stop(base::paste("Error in load_collection():", e$message))
+    }
+  )
 }
 
+
+
 #* @openeo-process
 mlm_class_random_forest <- function(num_trees = 100,
                                     max_variables = "sqrt",