I see that this issue appears on a couple of other threads but I cannot see a solution.

Can you please assist?

JSitemap 3.6
Joomla 3.4.4

Firefox
Safari

In Firefox I get...
An error occurred during communication with server or data retrieved have incorrect format-Parsererror: 200- SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data

In Safari I get...
An error occurred during communication with server or data retrieved have incorrect format-Parsererror: 200- SyntaxError: JSON Parse error: Unrecognized token '<'

Thank you for any assistance
Reagrds