diff --git a/__pycache__/Model.cpython-311.pyc b/__pycache__/Model.cpython-311.pyc
index 39086a8..ef00b29 100644
Binary files a/__pycache__/Model.cpython-311.pyc and b/__pycache__/Model.cpython-311.pyc differ
diff --git a/fitter.py b/fitter.py
index 1ebb17a..5e1cdcc 100644
--- a/fitter.py
+++ b/fitter.py
@@ -23,9 +23,11 @@ class Fitter:
         self.fit_results = {}
 
         self.tspan = [0, 1000]
-        self.initial_values = model.get_initial_values(self)
         self.dt = 1  # 1.0
         self.time_points = np.arange(*self.tspan, self.dt)
+        
+        model=Model()
+        self.initial_values = model.get_initial_values()
 
         self.iteration = 0  # least squares iteration counter