Hi
I'm getting this error message when trying to check the challenge inMap Your Workflow Criteria to Process Criteria
https://trailhead.salesforce.com/content/learn/modules/workflow_migration/workflow_migration_criteria
I created a new  DE but I'm getting the same error message once and again.
can you help me please?

thanks

There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: OPBHDLAG

YOUR CHALLENGE
Create a process to replace two workflow rules
The stars have aligned, and you finally have the time and buy-in to convert some workflow rules to processes. You're converting two Opportunity workflow rules into one Opportunity process. The evaluation criteria for both of the workflow rules is "created or edited to subsequently meet criteria." Create a process and configure the appropriate settings in the Object node to match the workflow rules. Note: Don't work in the Criteria node yet. In the next unit, the hands-on challenge asks you to add criteria and actions to your process.
Process Name: Opportunity Management
Start the process when: a record changes
Object: Opportunity
The process must evaluate both created and edited records
Challenge not yet complete in joni@testlogin.com
There was an unexpected error while verifying this challenge. Usually this is due to some pre-existing configuration or code in the challenge Org. We recommend using a new Developer Edition (DE) to check this challenge. If you're using a new DE and seeing this error, please post to the developer forums and reference error id: OPBHDLAG