calibre, version 5.7.2
ERROR: Unhandled exception: <b>TypeError</b>:exceptions must derive from BaseException

calibre 5.7.2  embedded-python: True is64bit: True
macOS-10.16-x86_64-i386-64bit Darwin ('64bit', '')
('Darwin', '20.2.0', 'Darwin Kernel Version 20.2.0: Wed Dec  2 20:40:21 PST 2020; root:xnu-7195.60.75~1/RELEASE_ARM64_T8101')
Python 3.8.5
OSX: ('10.16', ('', '', ''), 'x86_64')
Interface language: None
Successfully initialized third party plugins: Annotations (1, 13, 0) && Author Book Count (2, 2, 0) && BOL_NL (4, 5, 0) && Consolidate All Library Metadata (2, 0, 39) && Count Pages (1, 11, 0) && EpubCheck (0, 2, 3) && Extract ISBN (1, 5, 0) && Find Duplicates (1, 8, 3) && Goodreads (1, 5, 1) && Goodreads Sync (1, 14, 3) && KePub Input (3, 2, 10) && KePub Metadata Reader (3, 2, 9) && KePub Output (3, 4, 1) && Kobo Books (1, 8, 0) && Kobo Utilities (2, 11, 8) && KoboTouchExtended (3, 4, 1) && Manage Series (1, 2, 11) && Modify ePub (1, 6, 1) && MultiColumnSearch (1, 0, 87) && Quality Check (1, 11, 0) && Reading List (1, 7, 1) && Search The Internet (1, 8, 0) && User Category (1, 5, 5) && View Manager (1, 6, 0)
Traceback (most recent call last):
  File "calibre_plugins.consolidate_all_library_metadata.ui", line 167, in init_calm_dialog
    self.calm_dialog = CALMDialog(self.maingui,self.qaction.icon(),self.guidb,self.plugin_path,self.calm_dialog_restart_immediately,self.calm_consolidation_job_control,self.calm_derivegenres_job_control)
  File "calibre_plugins.consolidate_all_library_metadata.calm_dialog", line 243, in __init__
    self.CALMTargetTab = CALMTargetTab(parent_pointer,self.gui,self.guidb,self.myparentprefs,self.gprefs,self.plugin_path,
  File "calibre_plugins.consolidate_all_library_metadata.calm_dialog", line 4037, in __init__
    number_generated_libraries = self.get_number_of_generated_libraries()
  File "calibre_plugins.consolidate_all_library_metadata.calm_dialog", line 5951, in get_number_of_generated_libraries
    my_db,my_cursor,is_valid = self.apsw_connect_to_tools_db()
  File "calibre_plugins.consolidate_all_library_metadata.calm_dialog", line 5995, in apsw_connect_to_tools_db
    raise e
TypeError: exceptions must derive from BaseException