Here are some suggested steps for fixing a spooler error:

1. Check to make sure the spooler service is running.
2. Restart your printer.
3. Restart your computer.
4. Disable any printers you don't need.
5. Update your printer driver.
6. Run the Microsoft Printer Troubleshooter.
7. Run a antivirus/malware scan.
8. Run the Windows System File Checker.