There are some technical issues. Please notify us about the problem by filling in the contact form on the contact webpage. You may go to it directly by clicking the "Report a problem" button. We will try to find the cause of the issue as quickly as possible.
If the error occurred while taking a test, please enter the access code once again (or enter once again the link provided by the test creator). The test will be restored to the point in which it was disrupted.
We would like to apologise for any inconvenience caused and we are very grateful for your understanding.