Enable to access dashboardOJS

We are having difficulties accessing the OJS panel. We do not have access to any of the control panel features. It infinitely shows the loading wheel.
Could anyone help me?

Can you check the error log on your server/hosting?
And paste the related error here please…

Thank you for your answer. There is no error log. It could be an actualization but we didn´t install any. Now we are trying to upload ojs version into