diff --git a/htagweb/server/__init__.py b/htagweb/server/__init__.py
index de999f3..5f6c65d 100644
--- a/htagweb/server/__init__.py
+++ b/htagweb/server/__init__.py
@@ -254,7 +254,9 @@ async def killall():
             running_hids:list=await bus.get(KEYAPPS) or []
             if str(hid) in running_hids:
                 log("Try to reuse process",hid)
-                assert await bus.publish(hid.event_interact,dict(cmd=CMD_REUSE,params=params))
+                can = await bus.publish(hid.event_interact,dict(cmd=CMD_REUSE,params=params))
+                if not can:
+                    log("Can't answer the interaction REUSE !!!!")
             else:
                 p=multiprocessing.Process(target=process, args=[],kwargs=params)
                 p.start()
diff --git a/htagweb/server/client.py b/htagweb/server/client.py
index f676c69..11114a2 100644
--- a/htagweb/server/client.py
+++ b/htagweb/server/client.py
@@ -68,16 +68,19 @@ async def interact(self,**params) -> dict:
         """ return htag'actions or None (if process doesn't answer, after timeout)
             (dialog with process event)
         """
-        # subscribe for response
-        await self.bus.subscribe( self.hid.event_interact_response )
-
-        # post the interaction
-        if await self.bus.publish( self.hid.event_interact, params ):
-            # wait actions
-            return await self._wait(self.hid.event_interact_response) or {}
-        else:
-            self.error(f"Can't publish {self.hid.event_interact} !!!")
-
+        try:
+            # subscribe for response
+            await self.bus.subscribe( self.hid.event_interact_response )
+
+            # post the interaction
+            if await self.bus.publish( self.hid.event_interact, params ):
+                # wait actions
+                return await self._wait(self.hid.event_interact_response) or {}
+            else:
+                self.error(f"Can't publish {self.hid.event_interact} !!!")
+        except Exception as e:
+            self.error("***HrClient.interact error***",e)
+            return {}
 
 
 async def main():