Answers.Body: <p>Turns out the culprit was ModSecurity</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-03-28T14:39:38.447Z
Answers.LastActivityDate: 2021-03-28T14:39:38.447Z
Answers.UserDisplayName: Eric Swanzey
Answers.Body: <p>Can you try reproducing on <a href="https://wpmaster.demo.civicrm.org/" rel="nofollow noreferrer">https://wpmaster.demo.civicrm.org/</a> (I did try and wasn't able to).</p>
  <p>Looks like its a environment issue. Could you please check your htaccess or server config? Or WP permlinks?</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2021-03-27T23:57:59.310Z
Answers.LastActivityDate: 2021-03-27T23:57:59.310Z
Answers.UserDisplayName: Pradeep Nayak
Body: <p>The following error is reproduceable on a fresh install of CiviCRM 5.35.1 on WordPress 5.7. If self-service cancellation is enabled for a simple event, the cancellation or transfer request results in the following error:</p>
  <p>CRM_Core_Exception: getFieldValue failed in /home/bbcadmin2016/sigstage57.net/wp/wp-content/plugins/civicrm/civicrm/CRM/Event/Form/SelfSvcUpdate.php on line 132</p>
  <p>The stack trace indicates this:</p>
  <p>CRM_Core_DAO::getFieldValue('CRM_Event_DAO_Ev…', null, 'title') /home/bbcadmin2016/sigstage57.net/wp/wp-content/plugins/civicrm/civicrm/CRM/Event/Form/SelfSvcUpdate.php:132</p>
  <p>I am reporting this again in the hope that it can be verified by someone else as a bug  - something that the core team requests before submitting the issue.</p>
  
Tags: <civievent><error>
Title: Self-service cancellation from a registered event seems to be broken
ThreadText: # Self-service cancellation from a registered event seems to be broken
  
  (Asked by: username_0 on 2021-03-27)
  
  The following error is reproduceable on a fresh install of CiviCRM 5.35.1 on WordPress 5.7. If self-service cancellation is enabled for a simple event, the cancellation or transfer request results in the following error:
  
  CRM\_Core\_Exception: getFieldValue failed in /home/bbcadmin2016/sigstage57.net/wp/wp-content/plugins/civicrm/civicrm/CRM/Event/Form/SelfSvcUpdate.php on line 132
  
  The stack trace indicates this:
  
  CRM\_Core\_DAO::getFieldValue('CRM\_Event\_DAO\_Ev…', null, 'title') /home/bbcadmin2016/sigstage57.net/wp/wp-content/plugins/civicrm/civicrm/CRM/Event/Form/SelfSvcUpdate.php:132
  
  I am reporting this again in the hope that it can be verified by someone else as a bug - something that the core team requests before submitting the issue.
  
  **Tags:** civievent, error
  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2021-03-28. Score: 1
  
  Turns out the culprit was ModSecurity
  
  
  ---
  
  ### Answer by username_1 on 2021-03-27. Score: 1
  
  Can you try reproducing on <https://wpmaster.demo.civicrm.org/> (I did try and wasn't able to).
  
  Looks like its a environment issue. Could you please check your htaccess or server config? Or WP permlinks?
  
  
  ---
  
  