Cannot Add Dashlets

SuiteCRM Demo site, user: will
OS: Win10pro 64bit
Firefox & Chrome
After logged in the demo account, move to “Action” —> “Add Dashlets”, no response after click on it.
In Chrome console:

webui.js:5 Ractive.js: Missing "" transition plugin. You may need to download a transition via
e @ webui.js:5
webui.js:11 Blocked autofocusing on a form control in a cross-origin subframe.
o @ webui.js:11
/include/SugarCharts/Jit/js/mySugarCharts.js?v=LK8K6B34tOxIiri57ZiLew:1 Failed to load resource: the server responded with a status of 404 ()
sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:4 [Deprecation] Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience. For more help, check
send @ sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:4
/include/SugarCharts/Jit/js/mySugarCharts.js?v=LK8K6B34tOxIiri57ZiLew:1 Failed to load resource: the server responded with a status of 404 ()
retrievePage.js:46 Uncaught TypeError: Cannot read property 'showDashletsDialog' of undefined
    at HTMLDivElement.<anonymous> (retrievePage.js:46)
    at HTMLDivElement.dispatch (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:3)
    at HTMLDivElement.r.handle (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:3)
    at Object.trigger (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:3)
    at HTMLDivElement.<anonymous> (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:3)
    at Function.each (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:2)
    at n.fn.init.each (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:2)
    at n.fn.init.trigger (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:3)
    at (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:12)
    at HTMLDivElement.<anonymous> (sugar_grp1_jquery.js?v=LK8K6B34tOxIiri57ZiLew:12)

Need suggestions and helps!

I have de same problem ! :silly:

Same issue here on our own install running version 7.11.7, Chrome 76.0.3809.100 and Firefox 68.0.1.

That’s a known issue on 7.11.7.

Check here for the solution: