The problem is that, this website requires some headers to load , which you can pass in the request
as
>>>requests.get('http://www.nasdaqomxnordic.com/etp/leverage-certifikat/info?Instrument=CSE192562', headers={"User-Agent": "Mozilla/5.0 (X11; CrOS x86_64 12871.102.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/81.0.4044.141 Safari/537.36"})
<Response [200]>
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…