wish of those help JSON RPC expects the client to send parameters to the server using an HTTP POST command with the procedure parameters in the post data. When you type a URL into the browser it sends an HTTP GET command, which doesn't send any parameters. RPC is intended for use by application programs, not directly by end users. See http://json-rpc.org/ for more details about it.
wish help you to fix your issue I have no experience with the maven plugin, but I do have lots of experience with AsciiDoc, the IntelliJ Plugin and the Gradle plugin. The IntelliJ Plugin behaviour is correct. When you convert /subfolder/index.adoc, the includes are resolved relative to this file, so the include include::../header.adoc is correct.
hope this fix your issue AFAIK, you're trying to reach the phone number input field on instagram main page. However, the locator is working, I've checked just now. The probable reason is in page loading. There is a pre-loader on instagram website which loads page ~1-2sec. In this case try to use ImplicitWait instead of sleep. Just put it right after driver.get(url) :