Hello, i have this error during setup (I'm upgrading my site):

Fatal error: Call to undefined function filesystemToInternal() in /zenphoto/zp-core/functions.php on line 589

I deleted folder zp-core and zp-themes and I have uploaded files again. I ran setup agains, but that error still exist.

I am upgrading from 1.4.1.6 to 1.4.9. I did same updating on differente server without that problem

Now it works! After I deleted / uploaded 3 times folders zp-core and zp-themes !