Javascript error

[ekcannon]

The module settings page won't work for me: none of the divs will open and there's an error:

TypeError: $(...).not(...).addClass(...).on is not a functionbrapi.module.js:356:6
    attach https://peanutbase-dev.usda.iastate.edu/sites/all/modules/brapi/theme/js/brapi.module.js?pswjux:356
    jQuery 2
    init https://peanutbase-dev.usda.iastate.edu/misc/drupal.js?pswjux:26
    b jQuery
    attach https://peanutbase-dev.usda.iastate.edu/sites/all/modules/brapi/theme/js/brapi.module.js?pswjux:327
    attachBehaviors https://peanutbase-dev.usda.iastate.edu/misc/drupal.js?pswjux:112
    each jQuery
    attachBehaviors https://peanutbase-dev.usda.iastate.edu/misc/drupal.js?pswjux:110
    <anonymous> https://peanutbase-dev.usda.iastate.edu/misc/drupal.js?pswjux:593
    jQuery 2

The problem seems to have started in commit e17f493 (Merge pull request #28...). Could this be related to BrAPI.js? It was merged into the code in that commit.