I wanted to solve the challenge on "Create Custom Objects and Fields" section but challenge doesn't display. Instead i get "Remember, this module is meant for Salesforce Classic. When you launch your hands-on org, switch to Salesforce Classic to complete this challenge" information and despite switching to Salesforce Classic i can't see the challenge. Any solutions?

I wanted to solve the challenge on "Create Custom Objects and Fields" section but challenge doesn't display. Instead i get "Remember, this module is meant for Salesforce Classic. When you launch your hands-on org, switch to Salesforce Classic to complete this challenge" information and despite switching to Salesforce Classic i can't see the challenge. Any solutions?