Özcan Zafer AYAN

Thanks for your fast response. I tried these steps: 1. Kooboo.exe app seems up to date. My version is 1.2.6994.42288 2. Cleared Local storage cache. But didnt work. I just...

I run site on localhost:81 

I just heard dnSpy by you from you right now. I replaced files. And will try dnSpy. Currently this problem occurs my corporate Windows Computer and my coworker's windows computer....

I traced on dnSpy. When i click "Create Blank Site", it detects Available method and breakpoint activates. Its good. After i clicked that button, "Create a New Site" Page shows....

> If the problem is because of old Kooboo files, you can download a new version and copy the "AppData" folder to the new version folder. Everything will work the...

I have inspected the code further. And found "Site.IsUniqueName" of `ApiMethodManager.List` looks null  

That's good news. Have you experienced problem that causes this issue?