Hello Huseyin
Definitely its a great problem, every time i am updating and missing one user per update. Really unbelievable.
I never faced this type of peculiar problem. Extremely sorry for your problem. I already informed it to our experts. Our development team asked for FTP details. Please send us your FTP details as private reply so that they can help you. Thank you..

Hello Husyein
Problem fixed:) please try now. Thanks for sharing FTP.

Oo great news, thank you!
Where was the problem, how you fix it, can you give me a simple explanation? If I need this fix again, I won’t disturb you again.

Hello Huseyin
There was some problem in plugin. We fixed it. I am not sure why its creating problem in your server. Anyway thank you for pointing it out.