Do these things to fix it.
-edit
-change
-to
Then Import Streams will work with R17b.
-edit
PHP:
nano /home/xtreamcodes/iptv_xtream_codes/admin/stream.php
-change
PHP:
$rArray["custom_map"] = $_POST["custom_map"];
-to
PHP:
if(isset($_POST["custom_map"])) {
$rArray["custom_map"] = $_POST["custom_map"];
} else{
$rArray["custom_map"] = 0;
}
Then Import Streams will work with R17b.