Getting rid of empty databases

Hi need some help. Some time ago I created a database and tables doing a tutorial. After I deleted the tables(don’t remember why)and now all I have is a database with no tables. Trying to clean up my db I wanted to drop the DB but get this error:
ERROR 1010 (HY000): Error dropping database (can’t rmdir ‘argie_tamera’, errno:41). I also have another db with no tables named testing.So I tried to create a table for other tutorial but get an error message that says I have to delete the tablespace before creating another table.I don’t remember the name of the table so what can I do I only have an empty db.Thanks for your help.

Look there it is step by step tutorial