Issue During SuiteCRM Upgrade to 7.12.8 from 7.11.13

Hello,

I am currently encountering an issue while upgrading SuiteCRM to version 7.12.8. I am using PHP Version: 7.3.33. Below is the error message that appears:


Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; rt_GSync has a deprecated constructor in C:\wamp64\www\suitecrm7.11.13\modules\rt_GSync\rt_GSync.php on line 41

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; rt_GSync_sugar has a deprecated constructor in C:\wamp64\www\suitecrm7.11.13\modules\rt_GSync\rt_GSync_sugar.php on line 44

Fatal error: Uncaught Error: Call to undefined method Basic::Basic() in C:\wamp64\www\suitecrm7.11.13\modules\rt_GSync\rt_GSync_sugar.php:68
Stack trace:
#0 C:\wamp64\www\suitecrm7.11.13\modules\rt_GSync\rt_GSync.php(44): rt_GSync_sugar->rt_GSync_sugar()
#1 C:\wamp64\www\suitecrm7.11.13\modules\Administration\RebuildRelationship.php(66): rt_GSync->rt_GSync()
#2 C:\wamp64\www\suitecrm7.11.13\ModuleInstall\ModuleInstaller.php(1775): include('C:\\wamp64\\www\\...') 
#3 C:\wamp64\www\suitecrm7.11.13\ModuleInstall\ModuleInstaller.php(1815): ModuleInstaller->rebuild_relationships()
#4 C:\wamp64\www\suitecrm7.11.13\modules\Administration\QuickRepairAndRebuild.php(225): ModuleInstaller->rebuild_all(true)
#5 C:\wamp64\www\suitecrm7.11.13\modules\UpgradeWizard\silentUpgrade_step2.php(388): RepairAndClear->rebuildExtensions()
#6 {main} 
  thrown in C:\wamp64\www\suitecrm7.11.13\modules\rt_GSync\rt_GSync_sugar.php on line 68

*************** silentupgrade failed ***************: 2

Looks like it is custom module. Check out the error in the code.