crashes with multiple users

I am new to and have recently deployed two dashboards with Professional account. When I open either of the dashboards, the first time I just see some texts and nothing loads properly. It shows proper content after reloading the page.

Also, if I open the dashboard from another device at the same time, the dashboard breaks down (this applies to either of my dashboards). Unfortunately I cannot share the code here. Any suggestions? Here is the message shown in log:
Container event from container-9145662: oom (out of memory)

start by checking the application logs.
use rsconnect::showLogs