Advanced technicians often bypass software limitations by manually placing the missing loader file into the tool's directory.
Before attempting to fix the issue, it helps to understand why the software is behaving this way: Loader For Iphone7 2-n61ap Not Found Unlocktool
If the iPhone is improperly detected, UnlockTool may request the wrong loader. Loader For Iphone7 2-n61ap Not Found Unlocktool
This is often the culprit. Your antivirus is likely deleting or blocking the loader. Loader For Iphone7 2-n61ap Not Found Unlocktool
Use the "Gaster" option within the tool to manually pwn the DFU state before attempting to load the Ramdisk.