pip install crispy-bootstrap5

i had the same problem but this time i was trying to impliment a contact us form then i got unexpected error, "ModuleNotFoundError: No module named 'contactcrispy_forms'" . i deleted the app and tried again then realised that it was spesific, contactcrispy_form.. after i did some diging and find out that i had replased the new contact app with the one i had installed earlier.. so .., to solve any crispy_form challenge.. allways ensure the new installed app is below the crispy_form in your installed apps. i did that and my problem was solved ... that is if youve not earlier installed the crispy_form... otherwise, hope this will help someone.. always put your new installed apps below your installed variables/apps/third_party apps in your installed apps...