(Error details: You do not have permission to create new pages.) is diplayed.
Topic on Project:Village Pump
Can you post the page you were trying to create, and in which language?
Here is the page, english language https://en.wikipedia.org/w/index.php?title=User:Pacyuchina/Yuriy_Kotyk&action=edit
The page exists since 21 February. I don't see what's the problem here.
But when i'm trying to rename it, or make some corrections there is a "You do not have permission to create new pages" warning(
You may need to BUGREPORT it for someone else to check what would be the problem. Please post exact steps to reproduce (if you want to rename the page, provide the exact page destination. If you are making changes, describe exactly what changes or post the contents of the page that you're tying to save but that gives error)