To uninstall Ninext :
1 - Run in the Ninox console :
2 - Your app will reload, and the Ninext pre-install panel will be displayed :
3 - open your database,
4 - click on the administrator button,
5 - in "Options" > "trigger after open", find and remove the install code below :
var res := http("GET", "").result.code; dialog("Ninext initialization", html("<script ninext=''>
...
</script>"), ["close"])