What tax year are you referring to here?
Punctuation in the employer name sounds like a very unlikely reason for a rejection--so it would be interesting to know exactly what the rejection message said.
The IRS has not even begun to accept or reject 2024 e-files. They will start doing that on January 29. If your past year (2023?) return was rejected, the only way to file it now is by mail. E-filing is permanently closed for 2023 returns.