Some application just did't respond even if i click on it

many of my apps just did’t start or respond even if it is installed
i am using ubentu 17
what to do any suggestion

This site is for the co-ordination of the Ubuntu project, and not support.

For Ubuntu Support options, you’ll find many listed on this page

Please also note Ubuntu versions follow a (year.month) release scheme; and 17.10 (the 2017 October release) reaches EOL today having reached the end of it’s 9 month supported life; 17.04 reached its EOL back on 13-Jan-2017. Use a LTS (long-term-support; 5 years) release if you need a longer supported life span for your Ubuntu.