font plugin has prevented me doing anyhing

HI,
I have just uploaded the font plugin and now I cant access anything in wordpress it takes me to my dashboard but then wont do anything, I have tried keying everything:-

there is a message that says:-
The problem can be solved only by you or by your server administrator by enabling remote access. In PHP settings:
1. Enable allow_url_fopen
2. or enable cURL
3. If settings 1 or 2 are enabled but this message is still visible, server settings or firewall may be blocking connection
4. Free hosting providers may be very restrictive and can refuse allowing remote connections from your server

To hide this message please resolve the problem and re-activate the plugin or if that’s not possible disable “Font” plugin

But i cant get into the editor to even try – please help urgently