I filed the extension for my corporation tax and accepted. but now it says I no longer e file form 7004 extension after 3/27/2025

The due date for calendar year S-corporations and Partnerships was March 17, 2025.  If your corporation has a different fiscal year, then your extension should be filed by the 15th day of the 3rd  month after your tax year ends.

If your company has a different fiscal year, you should still be able to file your extension.  You should double-check your entry for your tax due date.  

Filing a Business Tax Extension