Building and testing customized mediation models using Process macro

Dear Mike, thanks for your video but your syntax does not work. it shows following error:
>Error # 1. Command name: process
>The first word in the line is not recognized as an SPSS Statistics command.
>Execution of this command stops.
I request you please give me solution of above problem. the given solutions in replies are also not working please reply. I have tried syntax in spss 20 and 26. I wait for your response. thanks

Hello Professor Mike

Thanks for the video tutorial.

At the time of running your code, I have received following error message.

>Error # 1. Command name: Process
>The first word in the line is not recognized as an SPSS Statistics command.
>Execution of this command stops.
Process y=anxiety/m=poscop negcop/x=burn /total=1/stand=1/bmatrix=1,1,0,0,1,1.


Can you kindly clarify the problem in the coding?