Wordpress site wont load after update of plugins & php

'm looking for an experienced WordPress/PHP developer to restore my client's website: https://oaconsult.eu/ The website stopped working after some WordPress plugins and the PHP version were updated. What I need: Restore the existing WordPress website if possible Fix any PHP/plugin compatibility issues Update WordPress and plugins safely Make sure the website is stable and working correctly Ensure that we can easily make simple text/content edits afterwards I can provide full access to both WordPress Admin and the web hosting environment, including database/files if required. Alternative solution If restoring the existing WordPress installation is not practical, I also have a newly created version of the website that closely resembles the original site. This version is attached to the job and can instead be uploaded/configured on the existing hosting. Requirements You should have solid experience with: WordPress troubleshooting PHP and PHP version compatibility MySQL WordPress plugins/themes Web hosting, FTP/file management and databases Debugging broken WordPress installations I would like this handled ASAP. I expect this to be a relatively straightforward job for someone experienced with WordPress, PHP and MySQL. When applying, please let me know how soon you can start.