Espocrm Hang at "Loading" and did not load the main div correctly

[nil]

Hi,

I am new to Espocrm and experience the below issue:

I have installed the Real Estate Plugin on Espocrm 4.5.1 and it works well for a few days.

Now I got my working computer running all pages OK.

But all new computer / phone / ipad they all hang at the "Loading" when I check the detail of a Real Estate Request.

I research on google and forum and check all places that I can think of:

1. no error files created on Site/Data/logs

2. Apache no error log, but access log has the following
210.11.46.53 - abc [23/Apr/2019:19:20:43 +1000] "GET /api/v1/App/user HTTP/1.1" 200 7647
210.11.46.53 - abc [23/Apr/2019:19:20:43 +1000] "GET /api/v1/ HTTP/1.1" 200 25
210.11.46.53 - abc [23/Apr/2019:19:20:44 +1000] "GET /api/v1/RealEstateRequest/5cbafde016b63e61f HTTP/1.1" 200 1689
210.11.46.53 - abc [23/Apr/2019:19:20:44 +1000] "GET /api/v1/Activities/action/popupNotifications HTTP/1.1" 200 2
210.11.46.53 - abc [23/Apr/2019:19:20:44 +1000] "GET /api/v1/Notification/action/notReadCount HTTP/1.1" 200 1
210.11.46.53 - abc [23/Apr/2019:19:20:54 +1000] "GET /api/v1/Notification/action/notReadCount HTTP/1.1" 200 1
210.11.46.53 - abc [23/Apr/2019:19:20:59 +1000] "GET /api/v1/Activities/action/popupNotifications HTTP/1.1" 200 2
210.11.46.53 - abc [23/Apr/2019:19:21:04 +1000] "GET /api/v1/Notification/action/notReadCount HTTP/1.1" 200 1
210.11.46.53 - abc [23/Apr/2019:19:21:14 +1000] "GET /api/v1/Notification/action/notReadCount HTTP/1.1" 200 1
210.11.46.53 - abc [23/Apr/2019:19:21:14 +1000] "GET /api/v1/Activities/action/popupNotifications HTTP/1.1" 200 2
210.11.46.53 - abc [23/Apr/2019:19:21:24 +1000] "GET /api/v1/Notification/action/notReadCount HTTP/1.1" 200 1
210.11.46.53 - abc [23/Apr/2019:19:21:29 +1000] "GET /api/v1/Activities/action/popupNotifications HTTP/1.1" 200 2
210.11.46.53 - abc [23/Apr/2019:19:21:34 +1000] "GET /api/v1/Notification/action/notReadCount HTTP/1.1" 200 1

3. It is now working with one computer on Google Chrome, but when I use Firefox it doesn't work
All non-working computer when I inspect the code the main div has no content loaded
<div id="main"></div>

4. check database all good.

5. Rebuild and Clear Cache tried and no good

6. It doesn't seems to be PHP or MySQL version as I still got one computer loading up correctly, so it has to be something to do with JS or others

7. I have reset the in Layout Manager in case anything there blocking but no luck....

Thanks for everyone's helps and comments.

[Maximus]

It seems that web browsers on your devices are using some js blocker. Please check that.

[nil]

Just an updates, seems to be working now.

I have try updating the EspoCRM to the lastest version and Real Estate Plugin reinstalled and it is working fine now.