This error is harmless. However, your configuration file is malformed. What u/mart1d4 said is right that the custom settings are for custom games mode (not hard). Start with the default config. You can use: https://jsoneditoronline.org/ to check your file formatting. Source: 12 months ago

Download the text file with curves from this thread: https://www.avsforum.com/threads/announcing-ratbuddyssey-a-tool-for-tweaking-audyssey-multeq-app-files.3006886/post-62226147Save your .ady file and open it here: https://jsoneditoronline.org/. Source: 12 months ago

It really depends on the device and what software it comes with natively. You should be able to edit it in whatever notes/text-based editor comes on your phone. There are also websites you can upload it to and edit it through a browser like https://jsoneditoronline.org/ or https://jsonformatter.org/json-editor. Source: about 1 year ago

I just checked, there are online JSON editors [1][2] you can edit that file in, just remove the "var data = " in the front and the ";" at the end. (need to add that back at the end so it works again). Source: about 1 year ago

Open the file with notepad and paste the text into an online editor like https://jsoneditoronline.org/ then just find the `"LuaScript": ...` field and substitute the whole line(s) for: `"LuaScript": "",`. Source: about 1 year ago

The author has a yardi.com email.. And the little bit of research I did shows yardi is involved in property management software and real estate. Source: about 1 year ago