See this TurboTax support FAQ for the error - https://ttlc.intuit.com/community/bugs-and-error-messages/help/error-25300/01/25731
If you are unable to resolve the problem using the information from the support FAQ then contact TurboTax support for assistance.
Use this website to contact TurboTax support during business hours - https://support.turbotax.intuit.com/contact/
