I’m not on share host. I have my own VPS.
As a next step I suggest updating to the latest version of the app.
On the version I have: v5.6.25-C123
On the release:
I don’t have 8.2 I’m using 8.1.
Even though on /public_/vendor/composer/platform_check.php it says 8.1 
Where can I see my uploads? (What folder?)
I believe the latest version support 8.1 and 8.2.
I think documents are in the storage folder.
Well, I guess this will make me leave IN behind. Has been 2 days without being able to bill 2 customers I need to bill “yesterday”.
I can’t do an update if is not on Softaculous. I will have to bill customers “manually”, like I used to, until another update comes to the platform.
Thanks for all your help. I know you have been there trying to solve the issue. It’s appreciated.
Sorry I couldn’t solve the problem, @david may have some other suggestions.
In whm/cpanel you can set the PHP version per account. So the version shown through SSH may not reflect the settings for the specific website.
Try setting the global defaul PHP version to 8.1 or 8.2 and double check the site specific settings.
If that doesn’t work, try easy Apache and make sure the php-cli package is installed for each PHP version you use.
Also try running php-cli -v through ssh.
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Thanks! The php version for the account is 8.1 and the PHP-CLI was run through the terminal (after upgrading).
@hillel I did a restore back from the 15th. Here’s the error showing when I try to preview the invoice:
[14-Aug-2023 08:08:01 UTC] PHP Fatal error: Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 8.1.2". You are running 7.3.33. in /home/***/public_html/payments/vendor/composer/platform_check.php on line 24
[18-Aug-2023 20:06:01 UTC] PHP Fatal error: Uncaught Error: Class "ComposerAutoloaderInit06f75d9bb671516440a93032a773a138" not found in /home/***/public_html/payments/vendor/autoload.php:25
Stack trace:
#0 /home/***/public_html/payments/artisan(18): require()
#1 {main}
thrown in /home/***/public_html/payments/vendor/autoload.php on line 25
Did you check easy Apache?
Seems like the ea-php-cli extension isn’t installed for the PHP version the site is using.
That’s the issue here. It wasn’t before but it was updated (you can see my post 2 times above), but the system continue (after upgrade) giving errors, then it stop giving errors but wasn’t loading the pdf on the previews. Neither was loading the amount to pay.
I will check that “Easy Apache” to see if it give more info.
Apologies, it’s a long post and I did speed read. it.
Is there anything in the .htaccess file that might be forcing a PHP version?
I checked that because I saw another post and it seems right.
The last part is:
# Set the “ea-php81” package as the default “PHP” programming language.
<IfModule mime_module>
AddHandler application/x-httpd-ea-php81 .php .php8 .phtml
</IfModule>
Yes, it was the first thing we checked. Puzzling isn’t? 
I’m asking the techs to recheck the latest upgrade of CLI to be certain that part is done and well.
Is this server specifically just for invoiceninja or do you have other sites on the same server?,
That’s opcode caching for cli. Shouldn’t be related to any issues.
The error that showed yesterday was from another thing (cronjob), not the app persé.
So, I upgraded to v5.6.31-C123 but it stills not loading the client portal pdf preview. No errors are showing on the logs. Actually, haven’t shown errors for few days. The PDF loads while creating the invoice, just not on the popup and when you use the link that appears on the window and open it, it then will show the amount of the invoice and shows as “viewed” in the app. If you click “Pay Now” without going directly to the link shown, it will display like $0 (like is not being generated).
Also, I saw some “commits” on GitHub that I don’t see on the version, and they have to do with the pdf and invoice creation, but I might be wrong because even the line numbers don’t match.