1. Check the macro security settings of your system and make sure the setting is not blocking macros.
2. Make sure the Excel file does not have any macro virus.
3. Check if your version of Microsoft Excel is compatible with macros and if relevant updates are installed.
4. Determine if the code in your macros is correct or if there are any missing instructions.
5. Clear the temporary files in your system to remove any corrupted files.
6. Restore the original version of the Excel file in case you have made changes.