[TYPO3-install] Error after moving to new domain

[Niek van Oost]

Hi,

I just moved a TYPO3 site from a client to a subdomain of his domain. Of course, that isn't working directly so I did a search and replace on the database and changed and file reference in the template.
Also checked the LocalConfiguration.php, but the database connections settings aren't changed.

But, after those changes, I still get an 'No such file or directory' error on the powermail/Classes/Utility/ConfigurationUtility.php file. The old path was something like /var/www/vhosts/domain.nl/httpdocs/typo3conf/ext/powermail/Classes/Utility/ConfigurationUtility.php, which he still tries to include, but the new path must be /var/www/vhosts/domain.nl/old.domain.nl/httpdocs/typo3conf/ext/powermail/Classes/Utility/ConfigurationUtility.php

I have not worked with Typo3 before, so I didn't know anything about the system. Which file must be changed to? Or what is going wrong here?