No Federal Tax being deducted / calculated / showing

FordHarley

No Federal Tax (Zero) on Employee Pay preview detail summary prior to authorization for either prior pay periods nor current pay period payroll runs. Hesitant to authorize and run final payroll. Only one employee. Added a second employee for current pay period with timesheet for test and behaves the same. Not sure if related but when attempting to change company tax profile it gives me an "oops error ...." but doesn't identify where the error is at in individual data fields. Thanks in advance for anyone's consideration on this!