If searching the web for a solution to your problem fails, the defacto place to ask for help is the Redmine community. It can be reached through the www.redmine.org website, and through the IRC channel #redmine
on freenode.
Before you ask your question to the Redmine community, it is good practice to prepare data about your Redmine system because that is most likely the next question people from community are going to ask you once you submit your query. To gain information about your system if your Redmine is running, perform the following tasks:
Navigate to Administration | Information.
Copy the information outlined in red, and paste it with your message:
If your Redmine is not active, or accessible through the web browser, you can still get that information from the console by navigating to your Redmine installation root and typing the following:
ruby bin/about