Here’s the error from the console:
VM475:8 Uncaught TypeError: _.findWhereSafe is not a function
at n.eval (eval at m.template (underscore.min.js:5), <anonymous>:8:49)
at n.c (underscore.min.js:5)
at n.render (admin.prod.js:1052)
at admin.prod.js:1637
at Function.m.each.m.forEach (underscore.min.js:5)
at n.each (backbone.min.js:1)
at n.render (admin.prod.js:1625)
at _ (backbone.min.js:1)
at m (backbone.min.js:1)
at f (backbone.min.js:1)
(anonymous) @ VM475:8
c @ underscore.min.js:5
render @ admin.prod.js:1052
(anonymous) @ admin.prod.js:1637
m.each.m.forEach @ underscore.min.js:5
(anonymous) @ backbone.min.js:1
render @ admin.prod.js:1625
_ @ backbone.min.js:1
m @ backbone.min.js:1
f @ backbone.min.js:1
u.trigger @ backbone.min.js:1
reset @ backbone.min.js:1
t.success @ backbone.min.js:1
i @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.9.4:2
fireWith @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.9.4:2
y @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.9.4:4
c @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.9.4:4
XMLHttpRequest.send (async)
(anonymous) @ VM430:1
send @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.9.4:4
ajax @ load-scripts.php?c=1&load[]=jquery-core,jquery-migrate,utils&ver=4.9.4:4
e.ajax @ backbone.min.js:1
e.sync @ backbone.min.js:1
sync @ backbone.min.js:1
fetch @ backbone.min.js:1
initialize @ admin.prod.js:1610
e.View @ backbone.min.js:1
n @ backbone.min.js:1
(anonymous) @ admin.prod.js:2365
_ @ backbone.min.js:1
m @ backbone.min.js:1
f @ backbone.min.js:1
u.trigger @ backbone.min.js:1
(anonymous) @ backbone.min.js:1
(anonymous) @ backbone.min.js:1
m.some.m.any @ underscore.min.js:5
loadUrl @ backbone.min.js:1
checkUrl @ backbone.min.js:1