Configuration Advanced Settings (click to collapse) Use robots.txt file:

[fishtravel]

Hello!
In Configuration  Advanced Settings (click to collapse)
Use robots.txt file:
the switch of "user robots.txt file" settings don't remain.

access rights on the folder data - 0777
access rights on the file generator.conf - 0666 or 0777

[XML-Sitemaps Support]

Actually, it's saved but checkbox state displayed incorrectly on configuration page. Please re-download generator package to fix the issue.

Thank you for reporting!