When migrating from Odoo SaaS V15 to sh, following the suggested protocol, the system throws me a series of errors that prevent me from working. For example, when I enter, it gives me the following: 

"Style error

The style compilation failed, see the error below. Your recent actions may be the cause, please try reverting the changes you made.

Could not get content for website/static/src/snippets/s_process_steps/001.scss defined in bundle 'web.assets_frontend'. Could not get content for website/static/src/snippets/s_social_media/000.scss defined in bundle 'web.assets_frontend'."

I tried the migration several times and it gives the same result, also when trying to enter several modules it indicates another error, could you guide me, thanks