I am on CiviCRM 4.7, Php 5.6, drupal 7. When installing GDPR extension, it failed. After that whenever I try to uninstall and reinstall, CiviCRM shows error "Found Name, activity_type, civicrm_option_group". Nothing happens after that. GDPR settings menu or manually not accessible. A custom data group is created for contacts but when clicked it shows error message "Unable to reach server, Please refresh this page on your browser and try again".
I have tried manually removing the custom data using sql that was in the extension. but no luck. How can i resolve this please?