Just upgraded Civi from 4.7.11 to 4.7.13
The upgraded installed successfully, but rendered Civi functionally unusuable. Attempting to click on any tab within Civi (such as navigating to Contributions, Mailing, Memberships, etc.) results in the following fatal error in the web browser.
Any assistance is appreciated! Thank you!
Fatal error: require_once(): Failed opening required 'CRM/Core/Payment/EPayUCM.php'
(include_path='/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm/drupal/modules/civicrm_engage/:
/home/WEBSITE/public_html/drupal/sites/default/files/civicrm/extensions/uk.co.vedaconsulting.gotowebinar/:
/home/WEBSITE/public_html/drupal/sites/default/files/civicrm/extensions/org.civicrm.module.cividiscount-2.5/:
/home/WEBSITE/public_html/drupal/sites/default/files/civicrm/extensions/civicrm_stripe-4.5-dev/packages/:
/home/WEBSITE/public_html/drupal/sites/default/files/civicrm/extensions/civicrm_stripe-4.5-dev/:
.:
/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm:
/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm/packages:
.:
/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm:
/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm/packages:
/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm/vendor/tecnickcom:
/home/WEBSITE/public_html/drupal/sites/all/modules/civicrm/vendor/phpseclib/phpseclib/
in /home/WEBSITE/public_html/drupal/sites/all/modules/civicrm/Civi/Payment/System.php on line 59