How to free space in bubble

Hi, I am getting this message while opening my app:

Upgrade: 100% of the database used, tried cleaning the data from apps, deleted an app also, but still facing the same issue.

The current plan prevents some features from functioning properly.

● This plan does not let you deploy your application and access the live version.

● This plan does not let you use the API your application exposes.

● This plan has a limit on the number of things in your database (currently using 266 out of 200)

● This plan does not offer customizing the favicon.

● This plan does not offer SEO customization.

● Scheduling API Workflow actions will not work under this plan.

● Some Set Recurring events have a frequency that are not supported in this plan.

● Some Set Recurring events have a frequency that are not supported in this plan.

● Some Set Recurring events have a frequency that are not supported in this plan.

● Some Set Recurring events have a frequency that are not supported in this plan.

● Some Set Recurring events have a frequency that are not supported in this plan.

● Some Set Recurring events have a frequency that are not supported in this plan.

You need to delete some items from your database or upgrade your plan