I did not look at the site before the upgrade so cannot say it definitely was working before or not:
Used/administrator to run upgrade. All reportedly successful nothing untoward in upgrade log file but site is now blank
here is transcript of interaction with hosting company:
Your Question: Assistance on SUPPORT #PJA-869-23716 please
Please wait and one of our operators will be with you shortly.
You are now chatting with Jack J - Customer Support
14:08Jack J:Welcome to QualityHostOnline Live Support. This is Jack from Tech Support. How may I help you today?
14:09Murray Grainger:The upgrade from Joomla 3.3.3 to 3.4.1 seems to have killed my site theocc.org.nz
14:09Jack J:We are checking on the ticket.
14:09Murray Grainger:Thanks
14:09Jack J:Could you please let us know how you did the update?
14:11Murray Grainger:Via the update option in the Joomla 3.3.3 control panel on the 'backend' theocc.org.nz/administrator page
14:11Jack J:Okay, let me check on this.
14:14Jack J:It looks like some coding issue with the index file. When I replace the same with a test page it seem to be working.
14:17Murray Grainger:Are you looking at a solution? What is next step? Do you need/have access to the directories of the site?
14:18Jack J:We have the root access. Let me check in detail.
14:18Murray Grainger:thanks
14:31Jack J:Please let me know if you have any backups available with you? we have a server backup from April 27
14:33Murray Grainger:I took a backup of the public_html before I started it is 20150430.zip and is in that folder. It is everything except the "sermons" folder as they are large files
14:35Jack J:Should we try and restore from our server backup? It is a complete account backup. I will backup the current one before proceeding.
14:36Murray Grainger:Yes please - There will not have been anything of importace changed since April 27
14:36Jack J:Okay, Thank you. Current site has been backed up in case.
14:38Jack J:Restoration is in progress, let me know when did you update the installation?
14:39Murray Grainger:I did the 3.3.3 to 3.4.1 update about 50 minutes ago
14:39Jack J:Okay.
14:48Jack J:We restored the backup from April 26, and the domain is still showing the blank page. This looks like a coding issue with the index file, since when the index file is replaced with the test file, it is loading fine.
14:49Jack J:Please contact your developer and check with the index file scripts.
14:51Murray Grainger:The /administrator page was working OK before the update and now is not so the restored site should now work on the /administrator page again. This would seem to suggest that it cannot be a coding issue and why would both index.php file corrupt identically at the same time as the update was done?
14:53Jack J:I was making some changes when you tried the administrator page. It was working before the restore, and is working fine now too.
14:53Jack J:http://theocc.org.nz/administrator/
14:53Jack J:Please clear the browser cache and try.
14:55Murray Grainger:OK, I have /administrator back
14:55Jack J:It was working fine before too, maybe you were trying at the time I was making some changes in the configuration.
14:56Murray Grainger:"No updates available""You already have the latest Joomla! version, 3.3.3."
14:56Murray Grainger:This is the same situation as we were in before the upgrade (no surprising)
14:57Jack J:Could you please let me know the admin password and username
14:57Murray Grainger:madmin/xxxxxxxxxx
14:58Jack J:Thank you, let me check.
15:09Jack J:I tried disabling the modules/plugins and enabling them back. Also checked the htaccess file. I recreated and restored the mysql database and user. The issue still exists.
15:10Jack J:Could you please have a check on the index page scripts as the older version of joomla is not working as well?
15:11Murray Grainger:IE suggests that the site is looking for
http://theocc.org.nz/index.php?option=com_content&view=article&id=67 which is the 404 error page
15:11Murray Grainger:The index scripts etc come from the Shape5 template and are way beyond my expertise
15:12Jack J:In that case, please have your developer/programmer look at the scripts. We do not have expertise with coding.
15:13Murray Grainger:OK, thanks for all your help
15:13Jack J:You are welcome. Please update the ticket with your findings.
15:13Murray Grainger:Will do
15:13Jack J:Thank you for using QualityHostOnline Live Support. Do take care.
Opening in IE the site appears to be looking for
http://theocc.org.nz/index.php?option=com_content&view=article&id=67. ID67 is the 404 error page
Jank J's conclusion is that the index file is corrupt and thus must have been for some time since the restore from 27 April made no difference.
Can you assist pleas?
Many thanks
Murray