In order to get help most efficiently it’s essential that you provide a bit more details about your problem:
What specific errors are you getting in the terminal?
What specific errors are you getting in the browser’s console?
If you could provide a repository with the code of your project, the community (or any member of the Frontity team) would be able to clone your project and try to reproduce the issue you’re having
With this info, it’ll be much easier to help you with your issue
If you can’t share your whole project, please create a CodeSandbox (you can start with this template) or a GitHub repository with the minimal amount of code to reproduce the issue.