The reference to entity "pin" must end with the ';' delimiter.

asked 2019-04-09 21:04:18 +0800

stan1996
1 ● 1

updated 2019-04-11 11:54:54 +0800

cor3000
6280 ● 2 ● 7

<iframe id="iframe" 
    src="https://hujjat.uz/doc.jsp?id=61ef8a6d-a4f0-4cd0-89b3-89943cb2f379&pin=dY56sK24&sp=1"
    width="600px" height="400px" style="border: 1px solid gray" />

It gives an error what should I do? I registered everything correctly. What should I do?