ClientX - WHMCS Client Area Theme/Template 3.2.3 Nulled

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version 3.0.0 bug :
Base version file function naming error!
Code:
Error: Error: Call to undefined function WGS\CLIENTXTEMPLATE\wgs_clientx_child_get_license_file() in whmcs/modules/addons/clientx/classes/class.php:0 Stack trace: #0 /www/wwwroot/whmcs/modules/addons/clientx/includes/homepage.php(0): WGS\CLIENTXTEMPLATE\CLIENTX->wgs_clientx_child_get_license() #1 /www/wwwroot/whmcs/modules/addons/clientx/clientx.php(0): unknown() #2 /www/wwwroot/whmcs/admin/addonmodules.php(0): clientx_output() #3 {main}

How to fix Error: Error: Call to undefined function WGS\CLIENTXTEMPLATE\wgs_clientx_child_get_license_file() ?
 
I have tried but dont work