Pleas HELP ME!

After install Mega Filter Pro
http://support.themeburn.com/topic/mega-filter-pro-plus
I see errors on admin pages

Error1
SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
OK
Notice: Undefined index: code in /system/vendor/BurnEngine/admin/plugin/CompatibilityPlugin.php on line 13{“ru”:{“total”:”4″,”amount”:”10940\u0440.”}}

Error2
SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data
OK
Notice: Undefined index: code in /system/vendor/BurnEngine/admin/plugin/CompatibilityPlugin.php on line 13{“order”:{“label”:”\u0417\u0430\u043a\u0430\u0437\u043e\u0432″,”data”:[[1,0],[2,0],[3,0],[4,0],[5,0],[6,0],[7,0],[8,0],[9,0],[10,0],[11,0],[12,0],[13,0],[14,0],[15,0],[16,0],[17,0],[18,0],[19,0],[20,0],[21,0],[22,0],[23,0],[24,0],[25,0],[26,0],[27,0],[28,0],[29,0],[30,0],[31,0]]},”customer”:{“label”:”\u041a\u043b\u0438\u0435\u043d\u0442\u043e\u0432″,”data”:[[1,"1"],[2,0],[3,0],[4,0],[5,0],[6,0],[7,"1"],[8,0],[9,0],[10,0],[11,0],[12,0],[13,0],[14,0],[15,0],[16,0],[17,0],[18,0],[19,0],[20,0],[21,0],[22,0],[23,0],[24,0],[25,0],[26,0],[27,0],[28,0],[29,0],[30,0],[31,0]]},”xaxis”:[["1","01"],["2","02"],["3","03"],["4","04"],["5","05"],["6","06"],["7","07"],["8","08"],["9","09"],["10","10"],["11","11"],["12","12"],["13","13"],["14","14"],["15","15"],["16","16"],["17","17"],["18","18"],["19","19"],["20","20"],["21","21"],["22","22"],["23","23"],["24","24"],["25","25"],["26","26"],["27","27"],["28","28"],["29","29"],["30","30"],["31","31"]]}

Error3
Notice: Undefined index: code in /system/vendor/BurnEngine/admin/plugin/CompatibilityPlugin.php on line 13