Warning: mail() has been disabled for security reasons in...

[WoMBaT]

My mail system is somehow shut-down... It worked last month... Now when I try using the mail system:
http://www.aannemingsbedrijf-cwv.nl/cwv_nl/contact.php

Sorry - That's the Dutch version, I haven't had the chance to complete the English one, because it keeps messing up.

Warning: mail() has been disabled for security reasons in /home/wombat/public_html/cwv_nl/emailer.class.php on line 88

What Can I(or you) do to fix this?

Edit:
Somehow my account's PHP system got downgraded and whenever I try to upgrade it again, it tells me this:

An Error Has Occurred
An error occurred with your PHP version change request. Try again later or contact x10Hosting. (Code 3)

cPanel name: wombat
Website adress: http://www.aannemingsbedrijf-cwv.nl/

 

[WoMBaT]

bump*

 

[compwhizii]

Hi there. What level of PHP do you have?

 

[WoMBaT]

PHP Version: PHP 5.2.5 - Basic, Default

I want to set it to "Intermediate PHP Configuration" But it won't let me.

 

[compwhizii]

It's a request system. Is there an error message when you try and change it?

 

[WoMBaT]

Yes there is, just like I mentioned in my 1st post:

An Error Has Occurred
An error occurred with your PHP version change request. Try again later or contact x10Hosting. (Code 3)

I just tried it again and I got the same message.

 

[compwhizii]

For this I would post in the new support system, as staff members are no longer supporting this fourm.

http://support.x10hosting.com/index.php

 

[WoMBaT]

Will do.