diff --git a/src/cpp/helpers/ArchiveReader.cpp b/src/cpp/helpers/ArchiveReader.cpp
index 9d3a3fcf5..4e198863d 100644
--- a/src/cpp/helpers/ArchiveReader.cpp
+++ b/src/cpp/helpers/ArchiveReader.cpp
@@ -18,6 +18,12 @@ void ArchiveReader::Create() {
 }
 
 int32_t ArchiveReader::Open() {
+  if (!std::filesystem::exists(ArchivePath())) {
+    std::ostringstream errMsg;
+    errMsg << "Archive: " << ArchivePath().string() << " does not exist"
+           << std::endl;
+    throw ArchiveIOGeneralException(MZ_EXIST_ERROR, errMsg.str(), LOGLOCATION);
+  }
   auto err = mz_zip_reader_open_file(pmz_zip_reader_instance_,
                                      ArchivePath().string().c_str());
   if (err != MZ_OK) {
diff --git a/tests/end_to_end/cucumber/features/steps/steps.py b/tests/end_to_end/cucumber/features/steps/steps.py
index 0ee554db3..2ccf1428b 100644
--- a/tests/end_to_end/cucumber/features/steps/steps.py
+++ b/tests/end_to_end/cucumber/features/steps/steps.py
@@ -96,14 +96,13 @@ def run_antares_xpansion(context, method, memory=None, n: int = 1):
 
     context.return_code = run_command(context.tmp_study, memory=memory, method=method, n_mpi=n,
                                       allow_run_as_root=get_conf("allow_run_as_root"))
-
-    output_path = context.tmp_study / "output"
-    outputs = read_outputs(output_path, use_archive=not memory, lold=True, positive_unsupplied_energy=True)
-    context.outputs = outputs.out_json
-    context.options_data = outputs.options_json
-    context.lold = outputs.lold
-    context.positive_unsupplied_energy = outputs.positive_unsupplied_energy
-    print(f"output path is {output_path}")
+    if context.return_code == 0: # If the simulation failed we're not sur outputs have been generated properly
+        output_path = context.tmp_study / "output"
+        outputs = read_outputs(output_path, use_archive=not memory, lold=True, positive_unsupplied_energy=True)
+        context.outputs = outputs.out_json
+        context.options_data = outputs.options_json
+        context.lold = outputs.lold
+        context.positive_unsupplied_energy = outputs.positive_unsupplied_energy
 
 
 def run_command(study_path, memory, method, n_mpi, allow_run_as_root=False):