Some of the classes are from Bootstrap 4

[vetinary]

Hi. Thanks for the job done, but you should consider updating your demo. I spent hours investigating, why your template didn't look like it had to, and some JS code didn't work at all. You use ml-* classes for margins, while in bootstrap 5 they use ms-*, and there are many things like that.
Take a look at this: https://help.blocsapp.com/knowledge-base/migrate-from-bootstrap-4-to-bootstrap-5/

[surapol2]

Hi. Thanks for the job done, but you should consider updating your demo. I spent hours investigating, why your template didn't look like it had to, and some JS code didn't work at all. You use ml-* classes for margins, while in bootstrap 5 they use ms-*, and there are many things like that.
Take a look at this: https://help.blocsapp.com/knowledge-base/migrate-from-bootstrap-4-to-bootstrap-5/