Values in SiteWise OPC UA Gateway doesn´t update

Hi, In my current project I have the problem that no values ​​are written to the assets. The data stream is first shown as dissociated, but after linking to the asset no value is written. The namespace is Ns= 4 s = "" where Ns 4 is ="CODESYSSPV3/3S/IecVarAccess". The target device is a WAGO PLC. the data type is a boolean. The correct data stream is listed under Alias ​​in the asset. Now i have no idea, how to fix it thank you for your help