There could be a lot of reasons for Internal Server Error. Will be adding detected ones in this post. Feel free to share anything you have personally encountered in comments.
In general Internal Server Error message is always related to server configurations. Therefore first thing to check after you have faced this error is your server error logs.
1.Internal server error in SkaDate / Oxwall software can be caused by .htaccess rules.
When: Usually appears during software installation or after software update.
Error message you will find in error logs after Internal server error is:
[Wed Sep 16 17:43:55 2015] [alert] [client 77.235.8.86] /home/site/public_html/.htaccess: Option FollowSymLinks not allowed here
Temporary solution: Open your main .htaccess file and comment out ( hide) following line: Options +FollowSymLinks
To hide the line just add # at the beginning of it. Ex: #Options +FollowSymLinks
Permanent solution: Contact your host. They should set your server up in a way that it allows Options +FollowSymLinks .
Useful link: http://www.maxi-pedia.com/followsymlinks
2.Internal server error in SkaDate / Oxwall software can be caused by mod_security rules of your server.
When: Might appear when you save the language in Admin Panel >> Settings >> Languages.
Sample Error message you will find in error logs after Internal server error is:
[Thu Sep 11 20:13:07 2014] [error] [client 89.11.153.216] ModSecurity: Access denied with code 500 (phase 2). Pattern match “((alter|create|drop)[[:space:]]+(column|database|procedure|table)|delete[[:space:]]+from|update.+set.+=)” at ARGS:values[18542]. [file “/usr/local/apache/conf/modsec2.user.conf”] [line “368”] [id “300015”] [rev “1”] [msg “Generic SQL injection protection”] [severity “CRITICAL”]
Permanent solution: Contact your host and ask them to remove mod_security rule related to patterns from your error.
3.Internal server error in SkaDate / Oxwall software can be caused by PHP version.
When: After an update to SkaDate 11 ( platform 1.8).
Sample error message: Most likely you will get a blank white page after performing an update. Based on my experience error logs won’t tell you much. Firebug’s console will show 500 internal server error message.
Permanent solution: Update your PHP version to 5.4 . If you don’t know how to do so, contact your host.
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