Q: I see this error on some of my site's pages: Call to undefined function: mb_ereg_replace() in /path_to_dolphin/inc/utils.inc.php on line 120

A: This error and similar errors (yielding about functions starting with mb_) refer to mbstring extension being absent from your PHP compilation. You should either re-compile it with --with-mbstring directive (under Linux) or uncomment extension=php_mbstring.dll in php.ini (under Windows). Then you should restart Apache web server.

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Q: I get Uploading file error when uploading audio/video files in Ray Media and Video Players

A: This is a common problem and most of the time it is caused by the following reasons:

1) You're trying to upload files bigger than 2 Megabytes which is the default value for PHP configuration. To fix it, edit php.ini file which is used as a configuration file by your PHP processor. You have to find two variables: upload_max_filesize and post_max_size and assign bigger values to them.

2) You don't have .htaccess or have it corrupted in the ray folder. Here's the code that this file must contain:

			 <IfModule mod_security.c>
				SecFilterEngine off
			 </IfModule>

3) You have the correct .htaccess file but it gets overridden by other Apache settings on your server. You should contact your hosting provider in this case.

4) You don't have the proper ffmpeg.exe in ray/modules/global/app or it doesn't have 777 permissions (readable, writable, executable). In this case change the permissions and make sure the ffmpeg.exe file is applicable to your operating system: Linux (provided with Dolphin), ​Windows or ​FreeBSD.

5) You have incorrect permissions for the following folders:

ray/modules/mp3/files/, ray/modules/movie/files and ray/modules/music/files These folders must have 777 permissions.

6) You have PHP exec() function disabled on your server. Advise with your hosting provider in order to figure this out.

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Q: When I try to open somebody's profile, I get this page: Not Found

A: The problem is that your Apache server is not compiled with rewrite module or you don't have rewrite instructions in your Dolphin's root .htaccess file. These instructions should be as follows:

<IfModule mod_rewrite.c>
RewriteEngine on

RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule .+ - [L]
RewriteRule ^([A-Za-z0-9_-]+)$ profile.php?ID=$1 [QSA,L]
</IfModule>

If you can't solve these problems, you can disable Friendly profile permalinks in Settings -> Advanced Settings