XF 2.0 Upgrade Broken

[captainmatt29]

I get the following error, and have checked the permissions which are set to 0644 as expected so it's not that since I even had the host check and repair too any ideas why this is stopping me upgrading to 2.0.5 from 2.0.4 ?

I have a ticket open too but in case anyone else knows, I'm also using PHP 7.2 with all the required add-ons also.

ErrorException: [E_WARNING] file_get_contents(/home/webhos10/reptilezone.net/src/vendor/symfony/debug/Resources/ext/symfony_debug.c): failed to open stream: Permission denied in src/XF/Util/Hash.php at line 9

2. XF::handlePhpError()
4. file_get_contents() in src/XF/Util/Hash.php at line 9
6. XF\Util\Hash::hashTextFile() in src/XF/AddOn/AddOn.php at line 485
8. XF\AddOn\AddOn->passesHealthCheck() in src/XF/Install/Controller/Upgrade.php at line 51
10. XF\Install\Controller\Upgrade->actionIndex() in src/XF/Mvc/Dispatcher.php at line 249
12. XF\Mvc\Dispatcher->dispatchClass() in src/XF/Mvc/Dispatcher.php at line 88
14. XF\Mvc\Dispatcher->dispatchLoop() in src/XF/Mvc/Dispatcher.php at line 41
16. XF\Mvc\Dispatcher->run() in src/XF/App.php at line 1894
18. XF\App->run() in src/XF.php at line 328
20. XF::runApp() in install/index.php at line 14