Error 500 Vtiger 6.5 PHP 5.6 on AWS WHM CPANEL

Job ID: 33973241

Budget: €250 – €750 EUR

Note that I have an installation of vtiger versión 6.5 on a server on php 5.6 and a colleague updated the system to php 8.1 and the system configuration was lost and the profile, is not saved, and all PHP 5.6 and its extensions are uninstalled, I would like to know if you can recover the configuration by installing the version ioncube which corresponds I don't know what it is =( and I don't know what php extensions to be installed. Can you help us with that.

can you use Team viewer? I have it installed so you can access?

only use by teamviewer please

In the log I see this, but I don't understand why, although I have put php56 in [login to view URL], php7.2 routes appear:

LOG:

PHP Warning: include_once(vtlib/Vtiger/[login to view URL]): failed to open stream: No such file or directory

include_once(): Failed opening 'vtlib/Vtiger/[login to view URL]' for inclusion (include_path='.:/opt/cpanel/ea-php72/root/usr/share/pear'
Related categories: PHP Linux Software Architecture vTiger MySQL