Catch oserror for ascii output

Author: SilkeSchomann

src/mslice/models/workspacemanager/file_io.py

@@ -270,9 +270,14 @@ def _get_slice_mdhisto_xye(histo_ws):
 
 
 def _output_data_to_ascii(output_path, out_data, header):
-    np.savetxt(
-        _to_absolute_path(str(output_path)), out_data, fmt="%12.9e", header=header
-    )
+    try : 
+        np.savetxt(
+            _to_absolute_path(str(output_path)), out_data, fmt="%12.9e", header=header
+        )  
+    except OSError as e:    
+        raise RuntimeError(
+            f"Error occurred: {e}"
+        )
 
 
 def _to_absolute_path(filepath: str) -> str: