Calibre error when switching library

[capaman]

Hello all! I tried google and the forum search for this, but wasn't successful.
Here's my issue:

I keep a Calibre Library at my home computer on an external HDD.
I recently got a new laptop and wanted to copy some books over so I took my external HDD, plugged it in and took a fresh Calibre installation which I pointed to the Calibre Folder in the Drive.
It seems to get all the books right (they are in the list, but with no Covers in the sidebar), buy immediately throws an error, below, which is replicated whenever I click on an item in the list.
All systems are running Windows 10.

Thanks for the help.

calibre, version 4.23.0
ERROR: Unhandled exception: <b>WindowsError</b>:[Error 183] Cannot create a file when that file already exists: u'D:\\Calibre Folder\\***'

calibre 4.23  embedded-python: True is64bit: False
Windows-10-10.0.18362-SP0 Windows ('32bit', 'WindowsPE')
32bit process running on 64bit windows
('Windows', '10', '10.0.18362')
Python 2.7.16+
Windows: ('10', '10.0.18362', 'SP0', u'Multiprocessor Free')
Interface language: None
Successfully initialized third party plugins: Extract ISBN (1, 5, 0)
Traceback (most recent call last):
  File "site-packages\calibre\gui2\book_details.py", line 930, in show_data
  File "site-packages\calibre\gui2\book_details.py", line 654, in show_data
  File "site-packages\calibre\gui2\book_details.py", line 48, in set_html
  File "site-packages\calibre\db\legacy.py", line 220, in abspath
  File "os.py", line 157, in makedirs
WindowsError: [Error 183] Cannot create a file when that file already exists: u'D:\\Calibre Folder***'

[kovidgoyal]

that looks like your library folderis damaged. Run the check library tool

[capaman]

Originally Posted by kovidgoyal

that looks like your library folderis damaged. Run the check library tool

Thanks for the tip, will do!