How do I make an alarm setting application in codes?

Discuss
, ,
#1

I’m going to participate in a contest with this code, please help. thanks to those who helped

NOTE: Do not post a link to fishy websites.

I'm making an alarm setting app, can you help me?
When I test it in the alarm application I made, it gives an error:
#2

Screenshot_14
Screenshot_14360×697 29.5 KB

this is turkish app

#3

It gives the message “No application can perform this operation”.

#4

Taifun