Тестовый сайт - https://test2.wbsuite.com/wshop/index
В css файле прописаны шрифты -

@font-face {font-family: 'PT Sans';
	src: url('../webfont/pts55f_w.eot');
	src: local('PT Sans'), url('../webfont/PTS55F_W.woff') format('woff'),url('../webfont/PTS55F_W.ttf') format('truetype'), url('../webfont/PTS55F_W.svg#PTSans-Regular') format('svg');}

@font-face {font-family: 'PT Sans';
	font-style: italic;
	src: url('../webfont/pts56f_w.eot');
	src: local('PT Sans Italic'), url('../webfont/PTS56F_W.woff') format('woff'),url('../webfont/PTS56F_W.ttf') format('truetype'), url('../webfont/PTS56F_W.svg#PTSans-Italic') format('svg');}

@font-face {font-family: 'PT Sans';
	src: url('../webfont/pts75f_w.eot');
	font-style: normal;
	font-weight: bold;
	src: local('PT Sans Bold'), url('../webfont/PTS75F_W.woff') format('woff'),url('../webfont/PTS75F_W.ttf') format('truetype'), url('../webfont/PTS75F_W.svg#PTSans-Bold') format('svg');}

@font-face {font-family: 'PT Sans';
	font-style: italic;
	font-weight: bold;
	src: url('../webfont/pts76f_w.eot');
	src: local('PT Sans Bold Italic'), url('../webfont/PTS76F_W.woff') format('woff'),url('../webfont/PTS76F_W.ttf') format('truetype'), url('../webfont/PTS76F_W.svg#PTSans-BoldItalic') format('svg');}


@font-face {font-family: 'PT Sans Narrow';
	src: url('../webfont/ptn57f_w.eot');
	src: local('PT Sans Narrow'), url('../webfont/PTN57F_W.woff') format('woff'),url('../webfont/PTN57F_W.ttf') format('truetype'), url('../webfont/PTN57F_W.svg#PTSans-Narrow') format('svg');}

@font-face {font-family: 'PT Sans Narrow';
	font-weight: bold;
	src: url('../webfont/ptn77f_w.eot');
	src: local('PT Sans Narrow Bold'), url('../webfont/PTN77F_W.woff') format('woff'),url('../webfont/PTN77F_W.ttf') format('truetype'), url('../webfont/PTN77F_W.svg#PTSans-NarrowBold') format('svg');}

На сервере они лежат в указанной папке.
В консоли ошибки типа:
downloadable font: download failed (font-family: "PT Sans" style:normal weight:bold stretch:normal src index:2): status=2147746065
source: https://test2.wbsuite.com/ext/bravonew/view...nt/PTS75F_W.ttf style.css
22:05:21.550 downloadable font: no supported format found (font-family: "PT Sans" style:normal weight:bold stretch:normal src index:4)
source: (end of source list)

Подскажите, что можно сделать?