diff --git a/src/Solver/CommandLine.py b/src/Solver/CommandLine.py
index 86b324428421698efc1b78e418ec5db0d675a779..c72cf7353f7f2c98f17843331aeeb6ecea4ee9ac 100644
--- a/src/Solver/CommandLine.py
+++ b/src/Solver/CommandLine.py
@@ -20,7 +20,7 @@ import os
 import logging
 
 from datetime import datetime
-from tools import timer, parse_command_line, get_version
+from tools import timer, parse_command_line, get_version, logger_exception
 
 try:
     # Installation allow Unix-like signal
@@ -271,12 +271,15 @@ class CommandLineSolver(AbstractSolver):
         return True
 
     def _data_ready(self):
-        # Read process output and put lines in queue
-        s = self._process.readAll().data().decode()
-
-        if self._output is not None:
-            for x in s.split('\n'):
-                self._output.put(x)
+        try:
+            # Read process output and put lines in queue
+            s = self._process.readAll().data().decode('utf-8', "replace")
+
+            if self._output is not None:
+                for x in s.split('\n'):
+                    self._output.put(x)
+        except Exception as e:
+            logger_exception(e)
 
     def _finished(self, study, exit_code, exit_status):
         if self._output is not None:
diff --git a/src/View/RunSolver/Window.py b/src/View/RunSolver/Window.py
index dc1141d6bb62a0f0ee68f617a0348e2dc122d6e4..6c55ea6a4610a4274e0581b23b9e9dc41b6fd73c 100644
--- a/src/View/RunSolver/Window.py
+++ b/src/View/RunSolver/Window.py
@@ -296,10 +296,13 @@ class SolverLogWindow(PamhyrWindow):
         while self._output.qsize() != 0:
             s = self._output.get()
 
-            if type(s) is str and "[ERROR]" in s:
-                self._log(s, color="red")
-            else:
-                self._log(s)
+            try:
+                if type(s) is str and "[ERROR]" in s:
+                    self._log(s.encode("utf-8"), color="red")
+                else:
+                    self._log(s)
+            except Exception as e:
+                logger_exception(e)
 
     ####################
     # Process controle #