bootstrap not working

[josmbolomnyoi]

Prerequisites

• I have searched for duplicate or closed issues
• I have validated any HTML to avoid common problems
• I have read the contributing guidelines

Describe the issue

https://site.flexi-personnel.com/index.html
bootstrap not working... it was working yesterday and stopped

Reduced test cases

https://site.flexi-personnel.com/index.html

What operating system(s) are you seeing the problem on?

Windows

What browser(s) are you seeing the problem on?

Chrome, Safari, Firefox, Microsoft Edge, Opera

What version of Bootstrap are you using?

v.51

[julien-deramond]

Hello @josmbolomnyoi
This is as temporary jsdelivr issue referenced in #39947.
#39947 (comment) provides a temp solution for Bootstrap users.
Closing this issue as duplicate.