Help with fatal error

[birdie]

I currently on hold to the host, so thought I would post the error here if anyone can point me in the right direction.

On: http://www.podiatry-arena.com/
I just started getting this

Fatal error: Call to undefined function: is_dir() in /home/c-web/ca/08/podiatry-arena.com/public/www/index.php on line 30

We still using vB3.6 (don't ask!) and vBAdvanced as the home page

Any ideas where I can start troubleshooting this

[ShawneyJ]

i havent used vBAdvanced in so long. i hope someone can help.
just to rule the php version out. your host, have they recently upgraded php version?

[birdie]

Thanks. I will ask them about that; I have done nothing and the site is back up now! Will have to check with host what they did.

[ShawneyJ]

yeah, seems to be loading fast to. glad they fixed the issue. cheers mate.