Hello Chathura, 

Can you please, PM me your admin and FTP access details? I'll take a look at the issue. 

Hi Ross. 

We were able to find a fix by changing the return value on strings.php...

Now we are able to access the site.. However some of the string variable are nto returning their values on the site.

Basically.... on the tabs & many other places it is saying versus {$site_name} the real value.

Any Ideas?

After many failed attempts I found a fix for the above mentioned error.

The problem seemed to originate in the strings.php file.

Location 

Root Folder--> OW_utilities --> strings.php

The error generated around line 130. in the return preg_replace function..

Change string 130 in ow_utilities/string.php from

        return preg_replace('/{\$(\w+)}/ie', "isset(\$vars['\\1']) ? \$vars['\\1'] : '\\0'", $data);

to

        return preg_replace_callback('/{\$(\w+)}/i', 

                function($match) use ($vars) 

                { 

                    return (isset($vars["$match[1]"]) ? $vars["$match[1]"] : $match[0]);

                }, 

                $data);

This seemed to do the trick. No more 505.phtml Error. And no more string values visible for variables throughout the site.

I'm sorry Chathura for not replying we had a week-end here. So is everything ok now?

500.phtml ERROR help

return preg_replace_callback('/{\$(\w+)}/i', 

                function($match) use ($vars) 

                { 

                    return (isset($vars["$match[1]"]) ? $vars["$match[1]"] : $match[0]);

                }, 

                $data)

not worked...

http://www.nammasullia.com

Everything seems to be working fine for now Ross.. Thank you for the followup.

I will let you know if the problem comes back.

Same thing happen to me. Server eror 500.
 I'm using bluehost and the guys there help me to solve this.
But after that I can not access my website from mobile. It's showing blank.
Anyone can help?

Andiga please enable debug mode and copy the errors here, so we could assist you further. 

Quote from ross Andiga please enable debug mode and copy the errors here, so we could assist you further. 

hi ross I'm a newbie here. how to enable debug mode?

Quote from ross Andiga please enable debug mode and copy the errors here, so we could assist you further.