Ojs installation problem

Hello @elhou76,
This might be a softaculous issue, rather than an OJS-specific one. This error may be appearing with other applications other than OJS. For example, this post gives an example of how to resolve it with WordPress: https://www.gomahamaya.com/an-installation-already-exists-at-as-per-our-records-wordpress/

Please note that many users of OJS have reported issues when hosting with softaculous, particularly when it comes to upgrading. For example see here:

Beware of Softaculous for upgrades!