RStudio server fails to connect after reinstallation with System Error 2

[DBCammann]

Hi all,

I recently reinstalled rstudio-server (2024.04.2-764-amd64.deb) to get the latest version on our Ubuntu server (V. 20.04).
Attempting to connect on a browser with "http://serverSSH:8787/" results in an HTTP ERROR 503.
Using sudo to check the server status shows this error:

* rstudio-server.service - RStudio Server
     Loaded: loaded (/lib/systemd/system/rstudio-server.service; enabled; vendor preset: enabled)
     Active: active (running) since Fri 2024-08-16 07:52:56 PDT; 4min 59s ago
    Process: 2771740 ExecStart=/usr/lib/rstudio-server/bin/rserver (code=exited, status=0/SUCCESS)
   Main PID: 2771741 (rserver)
      Tasks: 4 (limit: 629145)
     Memory: 2.5M
        CPU: 508ms
     CGroup: /system.slice/rstudio-server.service
             `-2771741 /usr/lib/rstudio-server/bin/rserver

Aug 16 07:52:56 JchenLab systemd[1]: Starting RStudio Server...
Aug 16 07:52:56 JchenLab systemd[1]: Started RStudio Server.
Aug 16 07:55:26 JchenLab rserver[2771741]: ERROR system error 2 (No such file or directory) [path: /usr/lib/rstudio-server/www/offline.htm]; OCCURRED AT rstudio::core::Error rstudio::core::FilePath::openForRead(std::shared_ptr<std::basic_istream<char> >&) const src/cpp/shared_core/FilePath.cpp:1477; LOGGED FROM: void rstudio::server::offline::{anonymous}::handleOfflineRequest(const rstudio::core::http::Request&, rstudio::core::http::Response*) src/cpp/server/ServerOffline.cpp:61

Any help on getting this fixed is much appreciated! Please let me know if any more information is needed.

Best,
Davis