[DLAB-1624]: fixed bug
diff --git a/infrastructure-provisioning/src/general/scripts/gcp/common_stop_notebook.py b/infrastructure-provisioning/src/general/scripts/gcp/common_stop_notebook.py
index 6c042b8..bcd431b 100644
--- a/infrastructure-provisioning/src/general/scripts/gcp/common_stop_notebook.py
+++ b/infrastructure-provisioning/src/general/scripts/gcp/common_stop_notebook.py
@@ -63,7 +63,7 @@
         if clusters_list.get('items'):
             for vm in clusters_list['items']:
                 try:
-                    GCPActions().stop_instance(vm['name'], zone)
+                    GCPActions.stop_instance(vm['name'], zone)
                     print("Instance {} has been stopped".format(vm['name']))
                 except:
                     pass
@@ -76,7 +76,7 @@
 
     print("Stopping notebook")
     try:
-        GCPActions().stop_instance(instance_name, zone)
+        GCPActions.stop_instance(instance_name, zone)
     except Exception as err:
         dlab.fab.append_result("Failed to stop instance", str(err))
         sys.exit(1)