T4 & Joomla 6: Page 3 - Support Central

T4 & Joomla 6

aka-ra1

saguaros Are you saying this will resolve my issue?

saguaros

You can take a backup of your site and update this latest version.

aka-ra1

I have done that and there still appears to be the same issue.

•. - If I load the home page the screen is blank.
-- force refresh does nothing
•. - If I load another page the screen is blank.
-- force refresh loads the page
-- return to hompage and force refresh loads the page
• load the website in a incognito/another browser results in same issues.

It seems there is a rendering issue?

Please could you tell me if you've actually looked at my website that I've sent you in two different backup formats? I opened this support request at the beginning of December and really want to move my website to Joomla 6 now. The only thing that's holding the project timeline up is T4 framework/template.

Thanks

saguaros

@"aka-ra"#279981#p242385 You can try the following approach to troubleshoot the issue:

Disable the T4 Framework and the T4-based template currently in use, then switch temporarily to the Cassiopeia template and check how the site behaves.
There are two possible outcomes:

2.1 If the same issue still occurs, then the problem is likely caused by a third-party extension. Try disabling third-party extensions one by one to identify which one is causing the issue.
2.2 If the site works normally with the Cassiopeia template, then the issue is likely related to T4. In that case, go to Global Configuration → enable Debug Mode and set Error Reporting to Maximum, then refresh the blank page to check whether any detailed error message appears.

At the moment, I’m not seeing any other reports of the same issue.

aka-ra1

Ah man... I already said that I tried this months ago. See the post on Dec 30th 2025!!!

Since then I have been asked to provide access and then asked to provide a backup. Now I'm back at the start and no further along. This really is very frustrating especially as other people have jumped onto this thread and had their issues resolved.

The site works fine with Cassiopeia. The issue is definitely with T4 and I'm really stumped as to why you've simply not looked at it. Do I need to pay or something to be taken seriously? I can't even see what I would need to pay or where to pay it for professional level support.

Why have you asked for access and backups and not looked at anything?

aka-ra1

Another week has gone by and no response. I really was under the impression I'd have some sort of support and insight into what the issue is when I was asked to provide access and then provide files. Asking me to then turn Error reporting to maximum and know what to look for to then report back to you is really passing the buck. You do have access information in this thread.

Are you going to help me or not?

saguaros

aka-ra1 Hi

Go to plugins in admin panel: /administrator/index.php?option=com_plugins&view=plugins

Filter by System type + search for Hikashop

Then temporarily disable Hikashop system plugins, everything will work perfectly.

Once done, re-enable them again and see how it goes.

aka-ra1

saguaros I did start to go through this but it didn't work as intended and then I ended up having to delete everything to start over. I've not had the time to resurect the test back to where it was - so this isn't currently concluded. More important now is the "T4\Helper\T4PATH_TPL" issue with the staging site as that's halting being able to update the production site.

aka-ra1

saguaros I have now gone through the process of cloning the production site which is functioning correctly in Joomla 5 with T4 Plugin 2.5.5. Then through the process to upgrade to Joomla 6 and as before the site is blank in T4 but rendering with Cassiopeia. I've been through all the steps recommended by you in this topic including disabling Hikashop and it does not work perfectly as you suggested. That step seems to make no difference whatsoever...

saguaros

aka-ra1 More important now is the "T4\Helper\T4PATH_TPL" issue with the staging site as that's halting being able to update the production site.

Make sure that you install latest version of T4 system plugin: https://www.joomlart.com/member/downloads/joomlart/t4/t4-framework-new

aka-ra1

Yes, it is the update that caused the issue. I posted on this thread 9 days ago and then again 2 days ago but have not received a response.
https://www.joomlart.com/forums/d/52705-undefined-constant-t4helpert4path-tpl/12

saguaros

I replied you in that topic

aka-ra1

saguaros But what about this topic? There are now two issued with T4 not working. This one on a Joomla 6 build and the other one on the Joomla 5 build.
Joomla 6 (this topic) I have now disabled all 3rd party packages and the website does not render. This is clearly an issue with T4
Joomla 5 (other topic) I am awaiting your actual response after a sandbox test which I've supplied credentials for.

saguaros

Hi @aka-ra1
Thank you for reporting the issue.

Since you're using a Free membership, this issue would require a Premium support ticket for our development team to investigate and debug further.

From our initial testing, the issue does not appear to originate from Joomla 6 or the T4 Framework. You can verify this by creating a fresh installation with only Joomla 6 and the T4 Framework installed, where the issue does not occur.

It is most likely caused by a conflict with one of the third-party extensions or customizations currently installed on your site.
If you'd like our developers to investigate the conflict in detail, please open a Premium support ticket.

Thank you for your understanding.

aka-ra1

Right. I did ask you about premium support before and you ignored my question and left me waiting for this answer after I escalated the issue. It is not clear how to gain premium support or what the cost is and you have not made that any clearer.
I am not against paying to use the product if it resolves the issues in an expedient manner however I am pretty frustrated that I've asked about this before and I've been ignored for this long. Who is it that provides the premium support, what does it cost, what are the time frames, what is the system?

Have you actually tried doing a clean install and know this to be the case?

saguaros

I replied you in this topic: https://www.joomlart.com/forums/d/52705-undefined-constant-t4helpert4path-tpl/36
Kindly check.

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