When everything works...never change this. You'll break things.
ZTX37 communicates with Automatic 1111, Automatic 1111 has an URL. ZTX37 needs that URL and you can enter it here.
Normally you don't have to. ZTX37 by default assumes the default Automatic1111 URL. However, if you changed it in Automatic 1111, you also need to enter it here, to let ZTX37 know.
Simply open Automatic1111 and check the URL in your web browser to know if you have the right one.
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