catch unexpected error

validation.py

@@ -42,6 +42,8 @@ def validate_csv_can_be_read(file_content: str) -> pd.DataFrame:
             "Your file appears to have an unsupported encoding.<br>"
             "Please save your CSV file with UTF-8 encoding and try again."
         )
+    except Exception as e:
+        raise gr.Error(f"❌ Unexpected error reading CSV file: {str(e)}")
 
 
 def validate_dataframe(df: pd.DataFrame) -> None: