iTop Installation Error : Class ‘DBBackup’ not found

The article written discuss on how to handle the error happened in the installation of iTop. What is iTOP actually ?. So, as shown in the title of this article, iTop Installation Error : Class ‘DBBackup’ not found, it is clearly specified that the error is shown in the part of the article’s title “Class ‘DBBackup’ not found”. The error is specifically retrieved from the Apache Webserver error log file named ‘error.log’ as shown below :

[Wed Aug 23 08:07:40.978622 2017] [authz_core:debug] [pid 16830] mod_authz_core.c(809): [client] AH01626: authorization result of <RequireAny>: granted
[Wed Aug 23 08:07:40.979722 2017] [:error] [pid 16830] [client] PHP Fatal error: Class 'DBBackup' not found in /var/www/html/itop/setup/ on line 1037

And the installation process just sending a blank page so there is no clue or hint on the error which is triggering it. To be able to solve the problem above, below is the solution taken :

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