Make it work correctly with UTF-8

Hello, i am using your plugin on my page, but i noticed that it is saving the words with wrong encoding. Instead of normal language, it looks like:

Question”,”name”:”🍒 \u03a0\u03c9\u03c2 \u03bc\u03c0\u03bf\u03c1\u03ce \u03bd\u03b1 \u03c0\u03b1\u03af\u03be\u03c9 \u03b4\u03c9\u03c1\u03b5\u03ac\u03bd \u03c6\u03c1\u03bf\u03c5\u03c4\u03ac\u03ba\u03b9\u03b1;”,”acceptedAnswer”:{“@type”:”Answer”,”text”:”\u03a3\u03c4\u03b7\u03bd \u03b9\u03c3\u03c4\u03bf\u03c3\u03b5\u03bb\u03af\u03b4\u03b1 \u03bc\u03b1\u03c2 \u03bc\u03c0\u03bf\u03c1\u03b5\u03af\u03c4\u03b5 \u03bd\u03b1 \u03c0\u03b1\u03af\u03be\u03b5\u03c4\u03b5 \u03c0\u03b5\u03c1\u03b9\u03c3\u03c3\u03cc\u03c4\u03b5\u03c1\u03b1 \u03b1\u03c0\u03cc 1000 \u03c6\u03c1\u03bf\u03c5\u03c4\u03ac\u03ba\u03b9\u03b1 \u03bc\u03b5 \u03b5\u03b9\u03ba\u03bf\u03bd\u03b9\u03ba\u03ac \u03bd\u03bf\u03bc\u03af\u03c3\u03bc\u03b1\u03c4\u03b1, \u03c7\u03c9\u03c1\u03af\u03c2 \u03b5\u03b3\u03b3\u03c1\u03b1\u03c6\u03ae.”}}