Unable to parse Stat data

"Unable to parse Stat data from C:\Users[NameOfUser\AppData\Roaming[minecraft-directory]\saves[Worldname]\stats[player-UUID].json

com.google.gson.JsonSyntaxException: com.google.gson.stream.MalformedJsonException: Use JsonReader.setLenient(true) to accept malformed JSON at line 1 column 1 path $"

Sorry if I overlooked a bugpost for this, I searched and couldn't find it.