Hi honey_doll02,
You may want to double-check your issue data settings to ensure that the open access date for the issue is set correctly.
Please also see pp. 90-105 of
OJS in an Hour for detailed step-by-step payment and subscription instructions.
The outline is for OJS 2.2.x, but it's very similar if you're using OJS 2.3.x.
Cheers,
Michael