Empty forum page nad HTTP 500 after upgrade from 2.0.18 (have access to dashboard)

Hi all,
I just followed all installation instructions (including deleting the files and uploading the net .htaccess file) for my upgrade from Vanilla forums 2.0.18 to 2.2b1.
However, when I want to access my forum I get an empty page (page source shows it's really empty). I get an HTTP 500 Internal server error in IE. I do have access to my dashboard.
I have followed the instructions from http://docs.vanillaforums.com/developers/troubleshooting/ but I suspect my .htaccess file is the cause. I have enabled the RewriteBase to the correct subfolder (I believe). Is there anything else I can try?
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Comments
Who is your host? Does it work if you use the old .htaccess ?
this is the open issue BTW:
https://github.com/vanilla/vanilla/issues/3008
Dear Adrian,
Thank you for the swift reply!
My host is a non-commercial one (webserver is installed by IT in our institution).
With their help I was able to find the following error message in the Apache error log:
PHP Fatal error: Call to protected method MessageModel::inCategory() from context '' in /var/www/win/promforum/applications/dashboard/models/class.messagemodel.php on line 184
Since changing 'MessageModel' to 'self' did not work, I made the inCategory function public, and now it seems to work (still need to give it a thorough test run).
Not sure if this is a bug?
The server is running PHP 5.3.3, Apache 2.2.15 and MySQL 5.1.73.
Thnx for the help!
Might really be an issue that needs to be fixed in Vanilla. Line 183-185 of class.messagemodel.php:
The closure no longer has access to private or protected members of MessageModel. A solution could be (PHP >=5.4) http://au.php.net/manual/en/closure.bind.php or, as @JoosBuijs suggested, make MessageModel::inCategory() public.
See also http://stackoverflow.com/questions/6644288/using-self-in-an-anonymous-callback for a similar issue.
yes this is still an issue with 2.2 and php 5.3 requirement in readme, creating a bug in 2.2
@JoosBuijs nice work around
@mtschirs, thanks for filing issue https://github.com/vanilla/vanilla/issues/3016
I may not provide the completed solution you might desire, but I do try to provide honest suggestions to help you solve your issue.