Disk quote wrongly reported as exceeded

Problem description:
My repl got into an infinite restart cycle with this error showing up:

error: executing SQLite statement 'insert into ValidPaths (path, hash, registrationTime, deriver, narSize, ultimate, sigs, ca) values (?, ?, ?, ?, ?, ?, ?, ?);': attempt to write a readonly database (in '/nix/var/nix/db/db.sqlite')

Trying to chmod the db file, I get:

> chmod u+w /nix/var/nix/db/db.sqlite
chmod: changing permissions of '/nix/var/nix/db/db.sqlite': Disk quota exceeded

My storage bar in the bottom left corner shows 458/1024MB.

Steps to reproduce:
Start the repl

Browser/OS/Device:
Firefox

Can you send the Repl link?

https://replit.com/@ticica/Sello-Estates
To note, it magically started working yesterday night. Today I used it for a while, and after trying to use ‘less’ in the shell, and after the shell asking whether I want to install ‘less’, I am again getting this:

error: executing SQLite statement 'insert into ValidPaths (path, hash, registrationTime, deriver, narSize, ultimate, sigs, ca) values (?, ?, ?, ?, ?, ?, ?, ?);': attempt to write a readonly database (in '/nix/var/nix/db/db.sqlite')
(use '--show-trace' to show detailed location information)