Actually, this might help as well (for those who had a different skin they were using on phpBB and had a critical error return after upgrading via Fantastico):
http://www.phpbb.com/kb/article.php?article_id=13I had another skin previously on one of my accounts and when I upgraded via Fantastico, that template's folder was removed. I had to reupload it, and prior to doing so had a critical error returned.
So the steps would be this if you had a skin missing from phpBB now that you have upgraded:
1. Go to
http://www.phpbb.com/phpBB/catdb.php?db=2 and find the skin (or whatever site had the skin), then download it.
2. Log into your Cpanel, click on File Manager, then navigate to the templates folder (so something like clicking on the folder icon next to public_html, then the folder icon next to your forum's folder, then the folder icon next to your templates folder).
3. Click on "Upload File(s)" then click the Browse button next to one of the fields to find the file you downloaded.
4. Select that file then click OK, then click Upload.
5. Now, you will see the file, click on the file's name (not the icon to the left of it), and then click the "Extract File Contents" link in the upper right.
6. The file will extract and show all the files in a new window. Close out of that new window. You will not yet see the file extracted into the templates folder. Click "Up one level" then click the folder icon next to the templates folder again and now you will see the new template folder there.
7. Look up the forum page again. You may need to refresh it. The error should be gone and the site viewable now.
I hope this helps.
