Programador de Magento 1.7

Resolver os problemas abaixo que causam extrema lentidão no admin.
[05-Nov-2020 16:01:02 utc] php fatal error:  cannot redeclare class oauthexception in /home/tecasistemas/www/app/code/local/queldorei/shoppersettings/classes/oauth.php on line

E o log de script lento mostra o seguinte:

[05-Nov-2020 13:00:20]  [pool tecasistemas.com.br (PHP 5.6)] pid 82962

script_filename = /home/tecasistemas/www//index.php

[0x00007ffaec838d80] __construct() /home/tecasistemas/www/includes/src/__default.php:847

[0x00007ffaec838c90] __construct() /home/tecasistemas/www/includes/src/__default.php:30172

[0x00007ffaec838b20] getNewEmptyItem() /home/tecasistemas/www/includes/src/__default.php:30997

[0x00007ffaec838a10] load() /home/tecasistemas/www/includes/src/__default.php:30362

[0x00007ffaec8388d0] count() /home/tecasistemas/www/includes/src/VladimirPopov_WebForms_Model_Mysql4_Webforms_Collection.php:28

[0x00007ffaec838740] _afterLoad() /home/tecasistemas/www/includes/src/__default.php:31007

[0x00007ffaec838630] load() /home/tecasistemas/www/includes/src/__default.php:30351

[0x00007fff77c7a0a0] getIterator() unknown:0

[0x00007ffaec838490] adjustConfig() /home/tecasistemas/www/includes/src/VladimirPopov_WebForms_Model_Observer.php:59

[0x00007ffaec8382f8] adjustConfig() /home/tecasistemas/www/includes/src/__default.php:21112

[0x00007ffaec8380f0] _callObserverMethod() /home/tecasistemas/www/includes/src/__default.php:21091

[0x00007ffaec837f60] dispatchEvent() /home/tecasistemas/www/app/Mage.php:447

[0x00007ffaec837de0] dispatchEvent() /home/tecasistemas/www/includes/src/Mage_Adminhtml_Controller_Action.php:159

[0x00007ffaec837be0] preDispatch() /home/tecasistemas/www/includes/src/__default.php:13584

[0x00007ffaec8379c8] dispatch() /home/tecasistemas/www/includes/src/__default.php:17973

[0x00007ffaec837850] match() /home/tecasistemas/www/includes/src/__default.php:17526

[0x00007ffaec8376f0] dispatch() /home/tecasistemas/www/includes/src/__default.php:20128

[0x00007ffaec837548] run() /home/tecasistemas/www/app/Mage.php:683

[0x00007ffaec837400] run() /home/tecasistemas/www/index.php:87