I have lost rstudio server while updating it on ubuntu 16: URGENT HELP needed !

Almost there.
rstudio old version installed and verified. But when I access it from browser :

IP address:8787

it is inaccessible

  1. Checked port 8787, it is opened from all IP addresses
  2. Checked server status and saw it is dead since a week,
rstudio@ip-172-31-30-19:~$ systemctl status rstudio-server
● rstudio-server.service - RStudio Server
   Loaded: loaded (/lib/systemd/system/rstudio-server.service; enabled; vendor preset: enabled)
   Active: inactive (dead) since Wed 2022-03-09 01:39:32 IST; 6 days ago
rstudio@ip-172-31-30-19:~$ systemctl start rstudio-server
  1. Tried restarting with following results.
rstudio@ip-172-31-30-19:~$ systemctl start rstudio-server
==== AUTHENTICATING FOR org.freedesktop.systemd1.manage-units ===
Authentication is required to start 'rstudio-server.service'.
Authenticating as: Ubuntu (ubuntu)
Password: 
==== AUTHENTICATION COMPLETE ===
Job for rstudio-server.service failed because the control process exited with error code. See "systemctl status rstudio-server.service" and "journalctl -xe" for details.
  1. Checked Journal logs.. Here are first few lines.
rstudio@ip-172-31-30-19:~$ sudo journalctl -u rstudio-server
-- Logs begin at Thu 2022-03-10 22:44:06 IST, end at Tue 2022-03-15 20:50:49 IST. --
Mar 15 13:39:50 ip-172-31-30-19 systemd[1]: Stopped RStudio Server.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: Starting RStudio Server...
Mar 15 20:29:25 ip-172-31-30-19 rserver[21776]: /usr/lib/rstudio-server/bin/rserver: error while loading shared libraries: libssl.so.1.0.2: cannot open shared 
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Control process exited, code=exited status=127
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: Failed to start RStudio Server.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Unit entered failed state.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Failed with result 'exit-code'.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Service hold-off time over, scheduling restart.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: Stopped RStudio Server.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: Starting RStudio Server...
Mar 15 20:29:25 ip-172-31-30-19 rserver[21779]: /usr/lib/rstudio-server/bin/rserver: error while loading shared libraries: libssl.so.1.0.2: cannot open shared 
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Control process exited, code=exited status=127
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: Failed to start RStudio Server.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Unit entered failed state.
Mar 15 20:29:25 ip-172-31-30-19 systemd[1]: rstudio-server.service: Failed with result 'exit-code'.
Mar 15 20:29:26 ip-172-31-30-19 systemd[1]: rstudio-server.service: Service hold-off time over, scheduling restart.
Mar 15 20:29:26 ip-172-31-30-19 systemd[1]: Stopped RStudio Server.
Mar 15 20:29:26 ip-172-31-30-19 systemd[1]: Starting RStudio Server...
Mar 15 20:29:26 ip-172-31-30-19 rserver[21784]: /usr/lib/rstudio-server/bin/rserver: error while loading shared libraries: libssl.so.1.0.2: cannot open shared 
Mar 15 20:29:26 ip-172-31-30-19 systemd[1]: rstudio-server.service: Control process exited, code=exited status=127
Mar 15 20:29:26 ip-172-31-30-19 systemd[1]: Failed to start RStudio Server.

Looks like it is leading to the same problem:

error while loading shared libraries: libssl.so.1.0.2:

Update: Just saw this post, and it seems to be similar problem. Since it is closed I cannot comment on it. But looks like the solution could be in the same thread but is not evident to me.

Clearly this libssl seems to be a big pain area in installing rstudio server on ubuntu.