diff --git a/experiments/attack_defense_test.py b/experiments/attack_defense_test.py
index eba495a..ea9ce47 100644
--- a/experiments/attack_defense_test.py
+++ b/experiments/attack_defense_test.py
@@ -223,7 +223,7 @@ def test_meta():
 
     try:
         raise FileNotFoundError()
-        gnn_model_manager.load_model_executor()
+        # gnn_model_manager.load_model_executor()
     except FileNotFoundError:
         gnn_model_manager.epochs = gnn_model_manager.modification.epochs = 0
         train_test_split_path = gnn_model_manager.train_model(gen_dataset=dataset, steps=steps_epochs,
diff --git a/metainfo/poison_attack_parameters.json b/metainfo/poison_attack_parameters.json
index ea5eb61..4f5da26 100644
--- a/metainfo/poison_attack_parameters.json
+++ b/metainfo/poison_attack_parameters.json
@@ -5,14 +5,14 @@
   "n_edges_percent": ["n_edges_percent", "float", 0.1, {"min": 0.0001, "step": 0.01}, "?"]
  },
  "MetaAttackFull":{
-  "lambda_": ["Lambda", "float", 0.5, {}, "lambda coef - paper"],
-  "train_iters": ["Train iters (surrogate)", "int", 200, {}, "Trainig iterations for surrogate model"],
+  "lambda_": ["Lambda", "float", 0.5, {"min":  0, "max":  1, "step": 0.05}, "lambda coef - paper"],
+  "train_iters": ["Train iters (surrogate)", "int", 200, {"min": 0, "step": 1}, "Trainig iterations for surrogate model"],
   "attack_structure": ["Attack structure", "bool", true, {}, "whether change graph structure with attack or not"],
   "attack_features": ["Attack features", "bool", false, {}, "whether change node features with attack or not"]
  },
  "MetaAttackApprox":{
-  "lambda_": ["Lambda", "float", 0.5, {}, "lambda coef - paper"],
-  "train_iters": ["Train iters (surrogate)", "int", 200, {}, "Trainig iterations for surrogate model"],
+  "lambda_": ["Lambda", "float", 0.5, {"min":  0, "max":  1, "step": 0.05}, "lambda coef - paper"],
+  "train_iters": ["Train iters (surrogate)", "int", 200, {"min": 0, "step": 1}, "Trainig iterations for surrogate model"],
   "attack_structure": ["Attack structure", "bool", true, {}, "whether change graph structure with attack or not"],
   "attack_features": ["Attack features", "bool", false, {}, "whether change node features with attack or not"]
  }
diff --git a/src/attacks/poison_attacks_collection/metattack/utils.py b/src/attacks/poison_attacks_collection/metattack/utils.py
index a4bf404..201f301 100644
--- a/src/attacks/poison_attacks_collection/metattack/utils.py
+++ b/src/attacks/poison_attacks_collection/metattack/utils.py
@@ -90,7 +90,7 @@ def to_tensor(adj, features, labels=None, device='cpu'):
 
     Parameters
     ----------
-    adj : scipy.sparse.csr_matrix
+    adj : torch.Tensor
         the adjacency matrix.
     features : scipy.sparse.csr_matrix
         node features