why are task not available?

I signed-up to this website and wanted to do tasks,
But it says I have no tasks available for me,
And there are 12 potential jobs for me, but I can't complete them.
What should I do?

You need to work at the zero-level tasks in the beginning. Once you get a certain percentage of accuracy, the next level jobs will be available. Zero level tasks are not regularly available, just keeping refreshing the task list often to find it.
Right now there is one available there: Task ID: 730423 Help us Identify Authors

asdfgYou need to work at the zero-level tasks in the beginning. Once you get a certain percentage of accuracy, the next level jobs will be available. Zero level tasks are not regularly available, just keeping refreshing the task list often to find it.
Right now there is one available there: Task ID: 730423 Help us Identify Authors