no reason for termination

An employer is not required to provide a reason for terminating an employee's employment.  If you want to find out why you were terminated, you could file for unemployment benefits.  If the employer wants to challenge those benefits (assuming you are otherwise eligible) it will have to state a reason that it fired you.  On the other hand, if the employer chooses not to challenge the unemployment benefits, it will not be required to state a reason for the termination decision.