diff --git a/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java b/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java
index 3336663..47b8a49 100644
--- a/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java
+++ b/src/main/java/org/gcube/common/workspacetaskexecutor/dataminer/WorkspaceDataMinerTaskExecutor.java
@@ -185,7 +185,7 @@ public class WorkspaceDataMinerTaskExecutor implements ExecutableTask<TaskConfig
 	 * @throws ItemNotConfiguredException the item not configured exception
 	 * @throws Exception the exception
 	 */
-	public List<TaskConfiguration> checkItemConfigurations(String workspaceItemId) throws ItemNotConfiguredException, Exception{
+	public List<TaskConfiguration> checkItemConfigurations(String workspaceItemId) throws ItemNotConfiguredException, WorkspaceFolderLocked, Exception{
 		List<TaskConfiguration> confs = getListOfTaskConfigurations(workspaceItemId);
 
 		if(confs==null)