Roundcube webmail error

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Error:

HTTP error 404
The requested page was not found.
Possible reasons why you are seeing this page:
A bookmarked URL may have changed since you last visited.
The URL was entered incorrectly.
The URL was entered with inaccurate capitalization (URLs are case sensitive).
Please re-check the URL you are trying to reach. (Go Back)

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Upon checking the logs, we can see the following entries.

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Logs: roundcube db not existing
150114 7:53:13 InnoDB: Error: io_setup() failed with EAGAIN after 5 attempts.
InnoDB: You can disable Linux Native AIO by setting innodb_use_native_aio = 0 in my.cnf

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Step1: open the file /etc/my.cnf and add the below line,

innodb_use_native_aio = 0

Step2: Restart mysql service

service mysqld restart

Step3: Reinstall roundcube

/usr/local/cpanel/bin/update-roundcube --force