To use Akeeba backup for openemr 5, please visit https://www.akeebabackup.com/products/akeeba-solo.html
Download the core version
Documentation on how to use Akeeba backup solo can be found on https://www.akeebabackup.com/documentation/akeeba-solo/installation-updates-upgrades.html
You will need to have database connection information such as hostname, username, password and database name.
For example, if you host your openemr on http://www.domain.com, you will need the details above.
You then create a directory solo in the domain. For example, http://www.domain.com/solo
After that, you can upload the downloaded core version of Akeeba backup solo into the directory of solo http://www.domain.com/solo using FTP (eg. Firezilla) or CPanel.
The downloaded core version of Akeeba backup solo comes in zip format so you will have to extract it.
Once it is done, type http://www.domain.com/solo in the URL browser to launch Akeeba backup solo.
You will see the launch setup(configuration) page which ask you to input hostname, username, password and database. For 'site root', please click on the files you want back to backup. For example, public_html/domain
Then, click save and close on the top of the configuration page.
You are now ready to backup. Click on 'Backup Now' button.
It will run backup automatically. Please don't close the page until backup is completed. Once backup is done, it will showed backup is completed. Backup file can be found in directory solo/backups. The backup file come in jpa format. There is video tutorial for this https://www.akeebabackup.com/videos/1212-akeeba-backup-core.html
To restore Openemr with Akeeba kickstart, please visit https://www.akeebabackup.com/products/akeeba-kickstart.html
Download core Akeeba kickstart
Documentation on Akeeba kickstart can be found on https://www.akeebabackup.com/documentation/akeeba-kickstart-documentation/using-kickstart.html
The backup file (in jpa format) need to be transferred to main directory under http://www.domain,com. Please upload downloaded Akeeba kickstart core into the main directory http://www.domain.com. The Akeeba kickstart core come in zip files and need to be extracted.
To launch akeeba kickstart, type http://www.domain.com/kickstart.php. From there, click on write backup file in jpa you want to restore and also click on write directly. You then click on restore. Please do not close the page while restore is happening. Once restore is completed, it will showed you to clean up files which you should click on it for security reasons. You should be able to use openemr by going to http://www.domain.com. There is video tutorial on this https://www.youtube.com/watch?v=11QuUndH3b8
I hope you have good luck with Akeeba backup solo. It will be good if you have a bit of knowledge about Joomla https://www.joomla.org/ as the Joomla is mostly run on Akeeba backup system which works very well.