Error: "Unable to Open Database" using sqite3 and Windows - mysql

Question

I'm a newbie to this, and can't figure out how to solve this error that I get when attempting to query from the database. The error reads:
rm: cannot unlink 'C:/Users/myName/Documents/GitHub/active_record_lite/lib../cats.db': Permission denied
Error: unable to open database "'C:\Users\myName\Documents\GitHub\active_record_lite'": unable to open database file
By going to "Properties" and viewing the "Security" tab, everything is checked under "Allow" for security, so I assume that the project and all subfiles have full permission (is this correct?).
I have a "cats.db" and "cats.sql" file in the project folder.
This is where I attempt to query from the database:
require_relative 'db_connection'
require 'active_support/inflector'
class SQLObject
def self.columns
cols = DBConnection.execute2(<<-SQL, #table_name)
SELECT
*
FROM
?
SQL
And here is a db_connection.rb file:
require 'sqlite3'
# https://tomafro.net/2010/01/tip-relative-paths-with-file-expand-path
ROOT_FOLDER = File.join(File.dirname(__FILE__), '..')
CATS_SQL_FILE = File.join(ROOT_FOLDER, 'cats.sql')
CATS_DB_FILE = File.join(ROOT_FOLDER, 'cats.db')
class DBConnection
def self.open(db_file_name)
#db = SQLite3::Database.new(db_file_name)
#db.results_as_hash = true
#db.type_translation = true
#db
end
def self.reset
commands = [
"rm '#{CATS_DB_FILE}'",
"cat '#{CATS_SQL_FILE}' | sqlite3 '#{CATS_DB_FILE}'"
]
commands.each { |command| `#{command}` }
DBConnection.open(CATS_DB_FILE)
end
def self.instance
reset if #db.nil?
#db
end
def self.execute(*args)
puts args[0]
instance.execute(*args)
end
def self.execute2(*args)
puts args[0]
instance.execute2(*args)
end
def self.last_insert_row_id
instance.last_insert_row_id
end
private
def initialize(db_file_name)
end
end
Any advice/suggestions welcomed! Thanks!