Error in browser console when jquery-3.x enabled in Configuration->System->Collection and opened Admin login page or Admin panel :
Uncaught TypeError: e.indexOf is not a function
at w.fn.init.w.fn.load (jquery-3.x.min.js?35105cdef5:2)
at backup-manager.js:3
at backup-manager.js:329
Error in browser console when jquery-3.x enabled in Configuration->System->Collection and opened Admin login page or Admin panel :