Javascript error

Hi! I bought UM Core Extensions Bundle yessterday, then something happened! I got this javascript error while installing UM Social Login (See snapshot).

How can I fix this??? My site is down right now because of that!!!

https://www.dropbox.com/s/pfygp9ms0i3kpmk/javascript-error-bloggerchef.png?dl=0

I lost most links from may top and right menus, and can’t run any javascript.

https://wordpress.org/plugins/ultimate-member/