Error when add a new domain

Hello
i have multisite environment with domain mapping.
when I add a new domain using domain mapping plugin, I got an error like this in my error log.
"errno": 8,
"errstr": "Undefined index: HTTP_HOST",
"errfile": "wp-content\/plugins\/domain-mapping\/inc\/sunrise.php",
"errline": 28,
"post": [],
"get": []

any suggestions about this error?