Desktop App won't open Mac OSX 13.5

Dropbox won't open. I've deleted and resintalled and restarted several times but no joy. I'm getting the following error.

bn.BUILD_KEY: Dropbox
bn.VERSION: 186.4.6207
bn.constants.WINDOWS_SHELL_EXT_VERSION: 67
bn.is_frozen: True
machine_id: 1d8796be-017f-523d-8aa1-aae974f47dbb
pid: 2178
ppid: 1
uid: 501
user_info: pwd.struct_passwd(pw_name='mjjackson', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='MJ Jackson', pw_dir='/Users/mjjackson', pw_shell='/bin/zsh')
effective_user_info: pwd.struct_passwd(pw_name='mjjackson', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='MJ Jackson', pw_dir='/Users/mjjackson', pw_shell='/bin/zsh')
euid: 501
gid: 20
egid: 20
group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root'])
effective_group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root'])
DYLD_LIBRARY_PATH: None
cwd: '/'
real_path='/'
mode=0o40755 uid=0 gid=0
parent mode=0o40755 uid=0 gid=0
HOME: '/Users/mjjackson'
appdata: '/Users/mjjackson/.dropbox/instance1'
real_path='/Users/mjjackson/.dropbox/instance1'
mode=0o40700 uid=501 gid=20
parent mode=0o40755 uid=501 gid=20
dropbox_path: '/Users/mjjackson/Directeur Dropbox'
real_path='/Users/mjjackson/Directeur Dropbox'
not found
parent mode=0o40750 uid=501 gid=20
sys_executable: '/Applications/Dropbox.app/Contents/MacOS/Dropbox'
real_path='/Applications/Dropbox.app/Contents/MacOS/Dropbox'
mode=0o100755 uid=501 gid=20
parent mode=0o40755 uid=501 gid=20
trace.__file__: '/Applications/Dropbox.app/Contents/Resources/python-packages.zip/dropbox/client/ui/common/boot_error.pyc'
real_path='/Applications/Dropbox.app/Contents/Resources/python-packages.zip/dropbox/client/ui/common/boot_error.pyc'
not found
parent not found
tempdir: '/var/folders/bq/cngw_ds12llgl1vkmymj08mm0000gn/T'
real_path='/private/var/folders/bq/cngw_ds12llgl1vkmymj08mm0000gn/T'
mode=0o40700 uid=501 gid=20
parent mode=0o40755 uid=501 gid=20
Traceback (most recent call last):
File "desktop/dropbox/client/authentication/register_host_helper.py", line 500, in _try_register_host
File "desktop/dropbox/client/authentication/register_host_helper.py", line 676, in _on_register_host_success
File "desktop/dropbox/infinite/preferences.py", line 151, in update_local_config_from_server
File "desktop/dropbox/infinite/preferences.py", line 246, in _get_root_policy_unlocked
File "desktop/dropbox/infinite/preferences.py", line 263, in _get_user_choice_root_policy_unlocked
File "desktop/dropbox/infinite/preferences.py", line 282, in _get_policy_for_source_unlocked
File "desktop/dropbox/infinite/preferences.py", line 78, in from_str
ValueError: 17232518993