diff --git a/back/src/org/kar/karanage/api/HealthCheck.java b/back/src/org/kar/karanage/api/HealthCheck.java
index c71a77d..a5d0f68 100644
--- a/back/src/org/kar/karanage/api/HealthCheck.java
+++ b/back/src/org/kar/karanage/api/HealthCheck.java
@@ -20,7 +20,7 @@ public class HealthCheck {
     @GET
     @PermitAll
     public Response getHealth() {
-    	if (JWTWrapper.getPublicKey() == null) {
+    	if (JWTWrapper.getPublicKeyJson() == null) {
         	return Response.status(500).entity(new HealthResult("Missing Jwt public token")).build();
     	}
     	return Response.status(200).entity(new HealthResult("alive and kicking")).build();
diff --git a/client/python/karanage/karanage/state.py b/client/python/karanage/karanage/state.py
index 91e37aa..f1f01df 100644
--- a/client/python/karanage/karanage/state.py
+++ b/client/python/karanage/karanage/state.py
@@ -32,7 +32,7 @@ class KaranageState:
             return self.connection.get_url(service)
         return f"{self.connection.get_url(service)}/{topic}"
     
-    def send(self, topic: str, data: Optional[Dict], state: StateSystem = StateSystem.OK) -> None:
+    def send(self, topic: str, data: Optional[Dict] = None, state: StateSystem = StateSystem.OK) -> None:
         """Send a message to the server.
         :param topic: Topic where to publish the data.
         :param data: Data to send to the server