If you used Procare Payroll in version 9.1 this is a must read article.

Employee Data & Payroll Conversion

The Payroll module must be converted at the same time you convert Employee Data. If you have previously converted Employee Data only (without Payroll) DO NOT convert a second time. Instead you’ll make a Year to Date Payroll entry for each employee to bring their payroll history up to date.

If you have previously converted Family Data & Accounting be sure to uncheck those modules when you Import Employee Data & Payroll.