To resolve the issue with the Process Builder, the administrator should do the following steps:

Review the Error Email for the Process Builder and rectify the issues. The error email contains information about what caused the error and how to fix it.

Deactivate the Process Builder in production. This will prevent further errors from occurring while the administrator fixes the Process Builder.

Fix the Process Builder in a sandbox and migrate the change to production. This will ensure that the Process Builder is tested and validated before deploying it to production. References: https://help.salesforce.com/s/articleView?id=sf.flow_troubleshoot_error_email.htm &type=5 https://help.salesforce.com/s/articleView?id=sf.flow_deploy.htm &type=5