diff --git a/integrators/mps.py b/integrators/mps.py
index 33138a29a67237c8af827d5b4bcc7150f6b80e59..33b9efabeb8a1c90a4ed983ed366c5a304608574 100644
--- a/integrators/mps.py
+++ b/integrators/mps.py
@@ -376,7 +376,7 @@ class MPS(_integrator._Integrator, \
       diff_gf.vec.FV().NumPy()[:] = self._Mag_eta.m.vec.FV().NumPy()-oldIterate
       itError = sqrt( Integrate(diff_cf*diff_cf, self._GetMesh()) )
       
-      if isinstance(self._fixedPointItCounter, IterationCounter):
+      if isinstance(self._fixedPointCallback, IterationCounter):
         self._fixedPointCallback()
 
       # TODO consider error in heff like in mpsPaper
@@ -386,11 +386,18 @@ class MPS(_integrator._Integrator, \
       print("itnr = ", itnr, "; Err = ", itError)
     
       oldIterate[:] = self._Mag_eta.m.vec.FV().NumPy()
-      self._Mag_eta.ComputeMaxwell(self._solvetol)
+      self._UpdateMagnetostatic_insideFixedPointIteration()
 
     print("itnr = ", itnr, "; Err = ", itError)
     
 
+#------------------------------------------------------------------------------#
+
+
+  def _UpdateMagnetostatic_insideFixedPointIteration(self):
+    self._Mag_eta.ComputeMaxwell(self._solvetol)
+  
+    
 #------------------------------------------------------------------------------#
 
 
diff --git a/integrators/mpsab.py b/integrators/mpsab.py
index 017ce460632c000914725075399e3b963754ddd2..ae86f2761f037b25df23df039c24668f64871d41 100644
--- a/integrators/mpsab.py
+++ b/integrators/mpsab.py
@@ -65,6 +65,13 @@ class MPSAB(mps.MPS, _forms.lf_derivative.LinearForms_Derivative, \
       , self._solvetol)
 
 
+#------------------------------------------------------------------------------#
+
+
+  def _UpdateMagnetostatic_insideFixedPointIteration(self):
+    pass
+  
+    
 #------------------------------------------------------------------------------#
 
 
diff --git a/local_installer.sh b/local_installer.sh
index ad076ecca87bf30ab28a195495fc8cb2871d454b..3c4c42864843c0c03494dd4b9232f2c32a54ca35 100644
--- a/local_installer.sh
+++ b/local_installer.sh
@@ -8,7 +8,7 @@ WRITE_PATHS_TO=~/.bashrc
 NGSOLVE_GIT_VERSION_HASH="0419c0285dae6589c32a5ddfaf0dea2e89a5e3b7"
 BEMPP_GIT_VERSION_HASH="ce2ffc1ce52f07bf5890b19fb7c4389a7bb1031a"
 NGBEM_GIT_VERSION_HASH="499138ca5dd17e812d3bdfdc0556afbff4ca340c"
-COMMICS_GIT_VERSION_HASH=""
+COMMICS_GIT_VERSION_HASH="c4974e13106b6478663a211abd841b6c5ecf85d3"
 ################################################################################
 
 # install requirements