diff --git a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
index f12b51ac321ef43cbf1e53a3438db8fd109b1841..2669038ee61ded85e5319eb28f96421e954e04ad 100644
--- a/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
+++ b/notebooks/Jungfrau/Jungfrau_Gain_Correct_and_Verify_NBC.ipynb
@@ -185,8 +185,15 @@
     "        run_path = h5path_run.format(karabo_id_control, receiver_control_id)\n",
     "        integration_time = float(f[f'{run_path}/exposureTime/value'][()]*1e6)\n",
     "        bias_voltage = int(np.squeeze(f[f'{run_path}/vHighVoltage/value'])[0])\n",
-    "        \n",
-    "        gain_s = f[f'/RUN/{karabo_id_control}/DET/CONTROL/settings/value'][0].decode()\n",
+    "        try:\n",
+    "            gain_s = f[f'/RUN/{karabo_id_control}/DET/CONTROL/settings/value'][0].decode()\n",
+    "        except KeyError:\n",
+    "            print(\n",
+    "                \"ERROR: gain_setting is not available for h5 ctrl path \"\n",
+    "                f\"/RUN/{karabo_id_control}/DET/CONTROL/settings/value,\\nfor file: {fp_path_contr}. \\n\"\n",
+    "                \"WARNING: Setting gain_setting to 0, assuming that this is an old run.\\n\"\n",
+    "            )\n",
+    "            gain_s = \"KeyError\"\n",
     "    gain_setting = 1 if gain_s == 'dynamichg0' else 0  # gain_s == 'dynamicgain'\n",
     "\n",
     "control_path = h5path_cntrl.format(karabo_id_control, receiver_control_id)\n",
diff --git a/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb b/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb
index 71d4054047de83d30c638da505f89aa5efa740a1..1f83b622b0740ac85a2f1421629fed1064cfa6c9 100644
--- a/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb
+++ b/notebooks/Jungfrau/Jungfrau_dark_analysis_all_gains_burst_mode_NBC.ipynb
@@ -220,7 +220,14 @@
     "                    bias_voltage = int(np.squeeze(f[f'{run_path}/vHighVoltage/value'])[0])\n",
     "                    \n",
     "                    if r_n == run_high:\n",
-    "                        gain_s = f[f'/RUN/{karabo_id_control}/DET/CONTROL/settings/value'][0].decode()\n",
+    "                        try:\n",
+    "                            gain_s = f[f'/RUN/{karabo_id_control}/DET/CONTROL/settings/value'][0].decode()\n",
+    "                        except KeyError:\n",
+    "                            print(\n",
+    "                                \"ERROR: gain_setting is not available for h5 ctrl path \"\n",
+    "                                f\"/RUN/{karabo_id_control}/DET/CONTROL/settings/value,\\nfor file: {fp_path}. \\n\"\n",
+    "                                \"WARNING: Setting gain_setting to 0, assuming that this is an old run.\\n\")\n",
+    "                            gain_s = \"KeyError\"\n",
     "                        gain_setting = 1 if gain_s == \"dynamichg0\"  else 0\n",
     "                        print(f\"Constants Gain setting is {gain_setting} ({gain_s})\")\n",
     "\n",