Update snode_app_k8s.py

Author: geoffrey1330

simplyblock_web/snode_app_k8s.py

@@ -8,7 +8,7 @@
 import sys
 import utils
 
-from simplyblock_core import utils as sbc_utils
+from simplyblock_core import utils as sbc_utils, constants
 from blueprints import snode_ops_k8s
 
 logger_handler = logging.StreamHandler()