viewinvoices.php and invoices.php are not opening

[Ahzam]

I have upgraded my whmcs to 7.5. After upgrade the viewinvoices.php in client area and invoices.php in admin are throwing error like "Oops!Something went wrong and we couldn't process your request.".

I have checked the logs and it is giving error like "[12-Apr-2018 15:46:56] PHP Fatal error: Call to protected method WHMCS\Invoice::loadData() from context '' in /public_html/client/viewinvoice.php on line 0".

Also the same error is coming after client submitting a ticket.

Is anyone else facing the same issue or i am the only one. Kindly, help me out with this.

[Ahzam]

It is giving the same issue in viewticket.php page. I am not able to fix it. Can anyone help me to get it resolved.

[WHMCS John]

Hi @Ahzam,

This error is caused by customisations to your templates. Please switch to the stock Six template as an immediate workaround.

You can then take a closer look at your custom template files and make sure the relevant updates have been applied: https://docs.whmcs.com/Version_7.5.0_Release_Notes#Template_Changes

[Ahzam]

I have not applied any custom templates or any. I am just using the default template six from beginning. And i have automatic update from the whmcs admin panel. 

Can you please tell the steps on how to switch the template with the previous one if needed.

 

Thanks in advance

[WHMCS John]

Hi,

You can obtain a fresh copy of the invoicepdf.tpl file from the full release file at https://download.whmcs.com

Then upload it to your installation in the /templates/*your active template*/ directory

Finally, clear your template cache via Utilities > System > System Cleanup.