It sounds like some SMFShop code is missing from Load.php. Open Sources/Load.php, and search for this line:
'total_time_logged_in' => empty($user_settings['totalTimeLoggedIn']) ? 0 : $user_settings['totalTimeLoggedIn'],
Directly underneath it should be this:
// Begin SMFShop MOD Version New Version
'money' => isset($user_settings['money']) ? $user_settings['money'] : '',
'moneyBank' => isset($user_settings['moneyBank']) ? $user_settings['moneyBank'] : '',
// End SMFShop MOD
If those lines aren't there, add them in. This should fix your problem.
If you have further problems, please feel free to PM me your cPanel username and password (you may change the password to a temporary one if you like), and I'll take a look at it.