It is one of the most common problems in mobile phones and tablets. Usually, when you open an app, you will see a black screen for a few seconds and then the app will crash with or without an error message. There are a few ways to fix this problem.
There are a few situations that may cause the load issue in mobile apps.
If you have a login or account-related issue, please check the following steps.
It may take some time for the app company/developer to process the payment and credit to your account. Please be patient for 24-48 hours and see if the amount gets credited to your account. If not, please contact the development company using the contact details given below.
Support Website: https://www.7daysko.com/zh-hk/%E4%BF%9D%E9%9A%AA%E8%80%83%E8%A9%A6IIQE%E9%A1%8C%E7%9B%AE%E7%B7%B4%E7%BF%92APP