Trying to install piwik on my DF Bitnami image- missing the login page

Hi guys,
I've been running a cloud Image for DreamFactory built by Bitnami (AWS-ec2) for some time now, all great (BTW - love DreamFactory). Last night, I tried to get smart and went to install Piwik on the same server following these steps:

https://www.digitalocean.com/community/tutorials/how-to-install-piwik-on-an-ubuntu-12-04-cloud-server

Of course, something went bad and now, when I try to access the - http://(my_IP)/dreamfactory/dist/index.html, I get a white screen (with the Bitnami logo on the bottom right corner) and no DF login screen. API is returning the following error:

error": {
"context": null,
"message": "SQLSTATE[HY000] [2002] No such file or directory",
"code": 2002,
"trace": [
"0 /opt/bitnami/apps/dreamfactory/htdocs/vendor/laravel/framework/src/Illuminate/Database/Connectors/Connector.php(55): PDO->_construct('mysql:host=loca...', 'bndreamfactory', '972daded4f', Array)",

Any chance I can get back what I had?
MAny Thanks,
Adrian