Guides & Tutorials8.4 Update TroubleshootingTroubleshooting a Exception thrown in jobs queue execution Error

Troubleshooting a Exception thrown in jobs queue execution Error

Symptom

After updating to WHMCS 8.4.0, you may observe one of the following Exception thrown in jobs queue execution errors in the System Log:

Exception thrown in jobs queue execution (WHMCS\Module\Addon\Mailchimp\Mailchimp::createOrder) - Bad Request - We were unable to process the request. An order with the provided ID already exists in the account.

Exception thrown in jobs queue execution (WHMCS\Module\Addon\Mailchimp\Mailchimp::createCart) - Cart Already Exists - A cart with the provided ID already exists in the account.

Exception thrown in jobs queue execution (WHMCS\Module\Addon\Mailchimp\Mailchimp::updateCustomer) - Method Not Allowed - This list member cannot be removed. Can not archive a contact that is bounced, pending or archived.

Solution

Apply the 8.4.1 Maintenance Release via the Utilities > Update WHMCS page.

HotFix

We have created a hotfix for 8.4.0 only to correct this behavior:

https://whmcs.community/files/file/175-addon-6138-exception-thrown-in-jobs-queue-execution/