Project crated but inaccessible Follow

Hi,
I have installed youtracker on my server. After configuration, I have created one project for test but when i clicked on save i have received 403 error. If i serch project on project section i find it, but when i try to access to the project i receive a 404 error. Finaly i can't create project with same name becous youtrack tell me the project exists. How i can fix this problem? Can i remove from DB this project?