I am on Civi 4.7.27 and wordpress 4.9
Our organization has been using civi for the last 6 months without any real problems. A couple weeks ago we upgraded to the latest version of civi. Today I noticed that when ever someone submits a donation they get an error 500 page. The donation still goes through and is recorded in civi, but the donor does not land on the confirmation page, nor do they receive their receipt in email. I tried running "Clean up Cache" and "Reset Paths" that did not help. Does anyone know what could be causing this and how I can resolved it?
Thank you.
ADDED INFO 12/5/17 We are seeing the below errors. This issue is still not resolved. Remember everything was working perfectly until about three weeks ago, when both civi was upgraded to 4.7.27 and wordpress was upgraded to 4.9. These errors are not a result of something we did in attempting to fix it as we have not changed anything at this time. I hope it will give someone an idea of what is going on.
1 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/CRM/Utils/Mail/EmailProcessor.php(104):
CRM_Core_Error::fatal("No mailboxes have been configured for Email to Activity Processing")
2 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/api/v3/Job.php(401):
CRM_Utils_Mail_EmailProcessor::processActivities()
3 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/Civi/API/Provider/MagicFunctionProvider.php(89):
civicrm_api3_job_fetch_activities((Array:1))
4 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/Civi/API/Kernel.php(169):
Civi\API\Provider\MagicFunctionProvider->invoke((Array:9))
5 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/Civi/API/Kernel.php(100):
Civi\API\Kernel->runRequest((Array:7))
6 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/api/api.php(23):
Civi\API\Kernel->runSafe("job", "fetch_activities", (Array:1), NULL)
7 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/JobManager.php(145):
civicrm_api("job", "fetch_activities", (Array:1))
8 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/CRM/Core/JobManager.php(79):
CRM_Core_JobManager->executeJob(Object(CRM_Core_ScheduledJob))
9 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/api/v3/Job.php(99):
CRM_Core_JobManager->execute(FALSE)
10 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/Civi/API/Provider/MagicFunctionProvider.php(89):
civicrm_api3_job_execute((Array:2))
11 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/Civi/API/Kernel.php(169):
Civi\API\Provider\MagicFunctionProvider->invoke((Array:9))
12 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/Civi/API/Kernel.php(100):
Civi\API\Kernel->runRequest((Array:7))
13 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/api/api.php(23):
Civi\API\Kernel->runSafe("Job", "execute", (Array:2), NULL)
14 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/bin/cli.class.php(113):
civicrm_api("Job", "execute", (Array:2))
15 /home/oursite/public_html/wp-content/plugins/civicrm/civicrm/bin/cli.php(32):
civicrm_cli->callApi()