Step 4 error

[tekorei]

hello, works fine until i get an error when i try to start the step 4.
Error executing algorithm
This algorithm cannot run
The model you are trying to run contains an algorithm that is not available:
gniplannerftth:designnetwork

Please, can you help me to solve this issue?

[gni_support]

This error might be connected to the language that you are using in qgis.
Could you tell us what language are you using?
You can also, try switching to another language, preferably to english.