Reckon Accounts Plus 2016 keeps closing

Stage 1 - I am having difficulty adding a new employee.  

I have tried to enter the employee’s details using the Employee Centre (didn’t save) and then the Employee Organiser(which seemed to save but didn't). When I clicked on the icon in the Organiser to enter payroll details, all the fields I had already entered were blank, so I closed that and went to Employee Centre where the employee’s name and tax file number were displayed.

When I double clicked on the employee’s name in order to enter the details, everything was blank as before despite the employee’s name and tax file number being visible in the home screen of the employee centre and the fact I had entered all of his contact details, birthdate, etc using the Organiser.

I am having a lot of trouble with Reckon at the moment which all seem to have started since I first attempted to add this employee. I spent over and hour and a half to Reckon phone support staff on because Reckon kept encountering an error and closing. The staff were unable to help me (but are looking into it) and I have had to restore a back-up copy of the company file which has created a lot of catch up work at a terribly inconvenient time of year.

I am concerned there is a problem hiding in my file and I also have the immediate issue of not being able to enter (and pay) an employee. 

Stage 2 - Now I am unable to email payslips to existing employees.  

We are only a small business but our employees are entitled to payslips and end of financial year payment summaries and I am unable to email or print them plus our new employee has not even been entered on the system. I have had to perform a manual estimate in order to pay him. This is not recorded and I am unable to provide him with a payslip. 

Stage 3 - I am unable to open Reckon normally. 

I have to restore the backup each time I want to use the program (does this give a clue as to what is wrong?). If I just open Reckon as usual, the program encounters an error and has to close even if I try to do something as simple as “ write” a cheque.

 I am terrified that I will be unable to produce the reports I need to complete my BAS reporting.

I don't know what Stage 4 is going to be