OPC UA server Client with raspberry pi (4DIAC IDE)

I have problems, when i try running this programs, at QX output “merah_0” has “TRUE” value in client, and i try to connect with raspi, but at gpio raspi can’t switch on the lamp.
I use opc ua client and server to communicate all of them and 4diac ide to run the programs.

how can i solve this problems?

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Did you check this?

is it okay when i use 4DIAC IDE? is it same with other software to run program?