website not working

Hello, I contacted WordPress support because my site is not showing up content and they have told me the following:
you have 2 plugins (counter number showcase and responsive accordion and collapse) that both come with a version of bootstrap which is not compatible with the version of jQuery that ships with WordPress 5.6, you’ll need to get in touch with the developers of those.

How do I fix this issue? Please help. Thank you!

The page I need help with: [log in to see the link]