Please help, i cannot upload/post cosplay pictured

When i try to upload a picture, there comes always a text with (Daily limit exceeded) what does it mean? And how can i remove this Problem,or am i able to upload pictures?

Your account must be 7 days old before you can upload. This is mostly to prevent spammers from uploading a thousand logos/whatever and to give new users a couple days to make sure what they want to post is on-topic.