# How to fix this error?

**URL:** https://forum.kirupa.com/t/how-to-fix-this-error/144681
**Category:** Uncategorized
**Created:** [April 16, 2005, 3:01am UTC](https://forum.kirupa.com/t/how-to-fix-this-error/144681 "2005-04-16T03:01:46Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![overclocker23](https://avatars.discourse-cdn.com/v4/letter/o/c67d28/32.png) [@overclocker23](https://forum.kirupa.com/u/overclocker23)
#### Post date: [April 16, 2005, 3:01am UTC](https://forum.kirupa.com/t/how-to-fix-this-error/144681/1 "2005-04-16T03:01:46Z")

</div>

I think I may have accidently edited my php page index.php page and now I am getting the following error:

**Fatal error: Call to undefined function: mosgetparam() in /home/xxx/public\_html/index.php on line 4**

Can someone tell me what this means and how I can fix it? The site was working perfectly fine until I accidently made this chnage and now all I get is the message above? Please help, thanks.