diff --git a/.gitlab/workflow/replace_placeholders_in_md.py b/.gitlab/workflow/replace_placeholders_in_md.py
index cd252c8b876eeb7e38dc83fc8203f147d2b2aa95..629adc39cdebedbd19fef9c6dee2ea9880c07ed4 100644
--- a/.gitlab/workflow/replace_placeholders_in_md.py
+++ b/.gitlab/workflow/replace_placeholders_in_md.py
@@ -138,6 +138,8 @@ def replace_placeholder_with_file_content(
     ------
     ValueError
         If placeholder contains invalid number of colons. Valid numbers are 0, 1, 2
+    FileNotFoundError
+        If the file specified in a placeholder does not exist.
     """
 
     print(f"{90 * '-'}\nProcessing {input_file}")
@@ -159,7 +161,6 @@ def replace_placeholder_with_file_content(
 
     output_file_content = ""
     replaced_placeholders = []
-    skipped_placeholders = []
 
     with open(input_file, "r") as original_file:
         # Loop over lines in input file and search for lines containing "§§§"
@@ -216,15 +217,14 @@ def replace_placeholder_with_file_content(
                         for line in rep_content.readlines()[start:end]:
                             replacement += f"{indentation}{line}"
                         replaced_placeholders.append(replacement_file)
-                except FileNotFoundError:
-                    replacement = (
-                        f"FileNotFoundError: File '{replacement_file}' not found.\n "
-                        f"\nOriginal line in input file:\n\n{original_line}"
-                    )
-                    skipped_placeholders.append(replacement_file)
-
-                # Add to md file
-                output_file_content += replacement
+                    # Add to md file
+                    output_file_content += replacement
+                except FileNotFoundError as err:
+                    raise FileNotFoundError(
+                        "\x1b[1;33;40m"
+                        f"file: {input_file}, invalid placeholder: {original_line}"
+                        "\x1b[0m"
+                    ) from err
             else:
                 output_file_content += original_line
 
@@ -232,8 +232,6 @@ def replace_placeholder_with_file_content(
         md_file_new.write(output_file_content)
     print("SUMMARY:")
     print(f"Replaced placeholders: {replaced_placeholders}")
-    if len(skipped_placeholders) > 0:
-        print(f"\x1b[1;33;40mSkipped placeholders: {skipped_placeholders}\x1b[0m")
 
 
 def main():
diff --git a/changelog.md b/changelog.md
index 6af44a1f71c04741455de551a08faa713767fe86..a868bc03d58f2f51f5d305f2e62a414ff41b41d1 100644
--- a/changelog.md
+++ b/changelog.md
@@ -4,6 +4,7 @@
 
 ### Latest
 
+- Adding error message if file in placeholder does not exist [!519](https://gitlab.cern.ch/atlas-flavor-tagging-tools/algorithms/umami/-/merge_requests/519)
 - Update the LWTNN scripts [!512](https://gitlab.cern.ch/atlas-flavor-tagging-tools/algorithms/umami/-/merge_requests/512)
 - Adding pydash to requirements [!517](https://gitlab.cern.ch/atlas-flavor-tagging-tools/algorithms/umami/-/merge_requests/517)
 - (Plotting API) Change default value of atlas_second_tag [!514](https://gitlab.cern.ch/atlas-flavor-tagging-tools/algorithms/umami/-/merge_requests/514)
diff --git a/docs/trainings/LWTNN-conversion.md b/docs/trainings/LWTNN-conversion.md
index fc2337df897c7e14ad2c95282a8eddf3f6819310..8a8760817c6b4cfea463f469051de6840b291f67 100644
--- a/docs/trainings/LWTNN-conversion.md
+++ b/docs/trainings/LWTNN-conversion.md
@@ -87,7 +87,7 @@ An explanation how to run on the grid with the TDD can be found [here](https://t
 After having the hdf5 ntuples produced, the script [`check_lwtnn-model.py`](https://gitlab.cern.ch/atlas-flavor-tagging-tools/algorithms/umami/-/blob/master/scripts/check_lwtnn-model.py) can be used to compare the athena evaluation with the keras evaluation. The script requiries a short config files which can be found [here](https://gitlab.cern.ch/atlas-flavor-tagging-tools/algorithms/umami/-/blob/master/examples/check_lwtnn-model_config.yaml). This looks like this:
 
 ```
-§§§examples/check_lwtnn-model_config.yaml§§§
+§§§scripts/check_lwtnn-model_config.yaml§§§
 ```
 
 You can simply run the script via