Issue Extension manager: Permission denied

[Sylthar]

Hello,

I can't access any longer the plesk extensions.

The button on the left is missing.
I tried to go Home>extension, but i have this message : You do not have permission to install extensions. Please contact your hosting provider.

I attached a screenshot.

Product version	Plesk Onyx 17.8.11
Product build	psa v17.8.11_build1708180301.19 os_Debian 8.0

I'm the admin and the only user on this account.
I have several website hosted on this plesk server.

If you need more detail, let me know.

Hopping that someone can help me with that issue.

Thank you very much.

 

[jhsh]

You have cropped the image, so it is not possible to see the username you are logged in as. Did you ever resolve the issue BTW?