Problem with getEmail() Google sheet, not working for other persons? - security

Question

I have a problem with getting email.
I have checked a lot of threads but I have not found the solution.
So I am the leader of the group. I am using Google Sheets for the Checklist.
I would like to simplify for every person so that it would be easier and no reason not to fulfill checklists.
basically: every time there is a checkbox clicked, automatic put in of date and email. But email works only for me. I have tried with a friend's account and I can not get it working.
is this Security Politics? Can i change it somehow?
I also updated the appsscript.json
{
"oauthScopes":
[
"https://www.googleapis.com/auth/spreadsheets.readonly",
"https://www.googleapis.com/auth/userinfo.email"
],
"timeZone": "Europe/Paris",
"dependencies": {
},
"exceptionLogging": "STACKDRIVER",
"runtimeVersion": "V8"
}
the script.
function onEdit(e) {
if(e.value != "TRUE" ) return;
e.source.getActiveSheet().getRange(e.range.rowStart,e.range.columnStart+2).setValue(new Date());
var text = e.user.getEmail();
if (text == "xxx1#gmail.com")
{
text = "xxx1";
}
else if (text == "Pxxx2#gmail.com")
{
text = "Pxxx2";
}
else if (text == "Kxxx2#gmail.com")
{
text = "Kxxx2";
}
else if (text == "kxxx1#gmail.com")
{
text = "Kxxx1";
}
else if (text == "jxxx1#gmail.com")
{
text = "Jxxx1";
}
else if (text == "jxxx2#gmail.com")
{
text = "Jxxx2";
}
else if (text == "")
{
text = "ID not found";
}
else
{
text = e.user.getEmail();
}
e.source.getActiveSheet().getRange(e.range.rowStart,e.range.columnStart+4).setValue(text);
}