Shorts code don't work

Hi,
I want to place a shortcode on my home page and it doesn’t work, instead of seeing my slider, I see the code. On the other hand in a lambda page the code works !! I need a little help, thanks in advance

Hi there

Sorry, but shortcodes and HTML tags are not allowed in the homepage widgets, you need to customize the theme to allow shortcodes

The same problem with me my home page shortcode does not work, instead of seeing my slide I see the code. I need help. Kindly help me

Its not our theme, please contact theme author for more details