After Upgrade Confluence Version from 5.4.4 to 7.3.2 the URL is not working

[Madhu Sudhan Ghodke]

Hi 

After Upgrade Confluence Version from 5.4.4 to 7.3.2 my site URL is not working 

Errors like : 

1. Could not load bootstrap from environment

2. This installation of Confluence has failed one or more bootstrap configuration checks. Please check the logs for details.

Please guide me how to fix the above mentioned errors. 

[Nic Brough -Adaptavist-]

Start with a look at the logs, as the errors say you should do.  

You'll want to read the application log, under <confluence home>/logs/ - atlassian-confluence.log is the first one to start reading, but check the others in there just in case.