Why can not work bootstrap modal window when done all the instructions?

Trying to build the website the modal dialog from bootstrap, but it disappears immediately as it appears. you can see on the website
shaburakov.com/project/sportfresh/index.html
the bottom button under the footer, a whole day trying to figure out why, so nothing came to mind.
the window disappears as if immediately clinging close button, can who faced such problem help.
July 12th 19 at 16:54
2 answers
July 12th 19 at 16:56
At least you need to disable the duplicate js. You have 2 times plugs bootstrap.
Yes, just a problem with the fact that you have two JS file from bootstrap, I have the same problem was, your answer I read, deleted the duplicate file and the modal window working. - Gayle.Mosciski25 commented on July 12th 19 at 16:59
July 12th 19 at 16:58
replace
$('#modal').modal();
on
$('#myModal').modal();

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