wp-dump makes our site unavailable

Hi,

I tried a back-up based on this plugin but unfortunately did not read correct on this option: change URL dump from X to Z..and now website is no longer online because it is revering to maintenance.inc.php file. What should I do to reverse it??

pls help asap. Reagrds, Rogier

https://www.ads-software.com/extend/plugins/wp-dump/