Not being able to delete files

I am currently creating an app that uses imported files to display information through the use of the Data Files panel. I was experimenting with different files and now I have run out of storage and it is not letting me delete the files.

The error message is:
anvil.tables.QuotaExceededError: Datatable database size limit exceeded

This has caused me to not be able to delete the files that I don’t want. Is there any solutions?

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(emphasis mine).

You could remove some table rows, or at least some of your bigger Media column values.