diff --git a/core/core.go b/core/core.go
index 5f1e86e..5e6587c 100644
--- a/core/core.go
+++ b/core/core.go
@@ -54,17 +54,17 @@ func Init(dataPath string, localizer *localizations.Localizer) error {
 			jsonBytes, err := ioutil.ReadAll(f)
 			f.Close()
 			if err != nil {
-				return fmt.Errorf("read comitium.json error: %w", err)
+				return fmt.Errorf(localizer.Get("errors.read_file_error", localizations.Replacements{"file": "comitium.json", "error": err}))
 			}
 			err = json.Unmarshal(jsonBytes, &Data)
 			if err != nil {
-				return fmt.Errorf("comitium.json is corrupted: %w", err)
+				return fmt.Errorf(localizer.Get("errors.corrupt_json_error", localizations.Replacements{"error": err}))
 			}
 		}
 		f.Close()
 	} else if !os.IsNotExist(err) {
 		// There's an error opening the file, but it's not bc is doesn't exist
-		return fmt.Errorf("open comitium.json error: %w", err)
+		return fmt.Errorf(localizer.Get("errors.read_file_error", localizations.Replacements{"file": "comitium.json", "error": err}))
 	}
 
 	if Data.Feeds == nil {
@@ -82,13 +82,13 @@ func Init(dataPath string, localizer *localizations.Localizer) error {
 			headerBytes, err := ioutil.ReadAll(f)
 			f.Close()
 			if err != nil {
-				return fmt.Errorf("read header.gmi error: %w", err)
+				return fmt.Errorf(localizer.Get("errors.read_file_error", localizations.Replacements{"file": "header.gmi", "error": err}))
 			}
 			Header = string(headerBytes)
 		}
 		f.Close()
 	} else if !os.IsNotExist(err) {
-		return fmt.Errorf("open header.gmi error: %w", err)
+		return fmt.Errorf(localizer.Get("errors.read_file_error", localizations.Replacements{"file": "header.gmi", "error": err}))
 	}
 
 	if Header == "" {