Hello @Joyce
Was this installation on a new computer or did you uninstall and install it back on the same computer?
If it was the former, then you need to clean up the residue files properly before you install back.
In addition, the screenshot cuts out some content, could you have the system generate clean logs (stop Tomcat and delete all logs and then start Tomcat and try opening UgandaEMR), open the std.err and std.out log files, and save them as text files so that you can upload them here.