SAPScript code error

Hi All!

I want to write the next code in a SAPScript form and I receive the marked error.

/: IF ((&MSEG-XAUTO& NE 'X' AND &MSEG-BWART NE '309') OR              

   <b>AND, OR or end of condition expected                       </b>        

=  (&MSEG-XAUTO& EQ 'X' AND &MSEG-BWART EQ '309')) .  

The tag column is the error?

Thank you for your answer.

Best regards,

Florina