Hi there LefevreCCC9,
The error "Super fund details are invalid" means that there's an issue with the super fund information provided. To resolve this, you can check the updated details of the fund by contacting the fund directly or by using the ATO's Super Fund Lookup tool. Once you have the correct details, make sure to update it on your file and link it to the employee. Here's a link for that with details steps on how to do it. With your other concern about the error "Whoops, something went wrong," that has been answered already on your other Community Forum post. Lastly, there'll be no issue paying super for the month when the employee was terminated, just make sure to undo the termination and have the employee active again.
Best regards,
Doreen