[Marega]

Hi - first post - and probably (hopefully) being an idiot here. Running windows 10. Never had a problem with Calibre before. Opened the program today, added some books from my computer. Then tried to add books and kept getting error messages saying "full". Now whatever I try to do I am getting error messages.
Trying to add book from my hard drive

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Failed to add the book: Earth Fall
C:\Users\Owner\AppData\Local\Temp\calibre_ewuatp\w waoqb_add_books\0\Earth Fall - Mark Walden.mobi
With error:
Traceback (most recent call last):
File "site-packages\calibre\gui2\add.py", line 379, in add_book
File "site-packages\calibre\db\legacy.py", line 217, in create_book_entry
File "site-packages\calibre\db\cache.py", line 61, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 1530, in create_book_entry
File "site-packages\calibre\db\backend.py", line 822, in execute
File "c:\cygwin64\home\kovid\sw\build\apsw-3.8.2-r1\src\cursor.c", line 231, in resetcursor
FullError: FullError: database or disk is full

Trying to delete book from Calibre

calibre 2.77 embedded-python: True is64bit: False
Windows-8-6.2.9200 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '8', '6.2.9200')
Python 2.7.9
Windows: ('8', '6.2.9200', '', 'Multiprocessor Free')
Successfully initialized third party plugins: DeDRM (6, 5, 3)
Traceback (most recent call last):
File "site-packages\calibre\gui2\actions\delete.py", line 404, in delete_books
File "site-packages\calibre\gui2\actions\delete.py", line 378, in do_library_delete
File "site-packages\calibre\gui2\library\models.py", line 385, in delete_books_by_id
File "site-packages\calibre\db\cache.py", line 61, in call_func_with_lock
File "site-packages\calibre\db\cache.py", line 1597, in remove_books
File "site-packages\calibre\db\backend.py", line 1621, in remove_books
File "site-packages\calibre\db\backend.py", line 834, in executemany
SQLError: SQLError: no such savepoint: _apsw-0

Can anyone help? Or do I just delete the program and start again?

Thank you. Sorry for the long post.