Dropbox on Mac not starting after recent upgrade

I found people having an issue with a similar error message, but mine doesn't mention permissions. That said, in the .txt file, the final line says "Permission denied".

Basically I've completely removed (via the advanced reinstall) Dropbox and re-installed it and am still getting the same error message after logging the Mac Desktop App into my account. 

The message reads the following:

Couldn't start Dropbox.

This may be a temporary error. Please restart Dropbox.

For more information, click the help button.

And then there's a .txt file with the following content:

bn.BUILD_KEY: Dropbox
bn.VERSION: 179.4.4985
bn.constants.WINDOWS_SHELL_EXT_VERSION: 62
bn.is_frozen: True
machine_id: b1d61806-f812-5ba2-982c-336b2cd2afc7
pid: 866
ppid: 1
uid: 503
user_info: pwd.struct_passwd(pw_name='***', pw_passwd='********', pw_uid=503, pw_gid=20, 
effective_user_info: pwd.struct_passwd
euid: 503
gid: 20
egid: 20
group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'dit', '_nsurlstoraged', '_serialnumberd'])
effective_group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'dit', '_nsurlstoraged', '_serialnumberd'])
DYLD_LIBRARY_PATH: None
cwd: '/'
real_path='/'
mode=0o40755 uid=0 gid=0
parent mode=0o40755 uid=0 gid=0
HOME: '/Users/***'
appdata: '/Users/***/.dropbox/instance1'
real_path='/Users/***/.dropbox/instance1'
mode=0o40700 uid=503 gid=20
parent mode=0o40755 uid=503 gid=20
dropbox_path: '/Users/***/Dropbox'
real_path='/Users/***/Library/CloudStorage/Dropbox'
mode=0o40755 uid=503 gid=20
parent mode=0o40755 uid=503 gid=20
sys_executable: '/Applications/Dropbox.app/Contents/MacOS/Dropbox'
real_path='/Applications/Dropbox.app/Contents/MacOS/Dropbox'
mode=0o100755 uid=503 gid=20
parent mode=0o40755 uid=503 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/cw/91xsvq6d5v52gyw7hlbjlk5c0000gq/T'
real_path='/private/var/folders/cw/91xsvq6d5v52gyw7hlbjlk5c0000gq/T'
mode=0o40700 uid=503 gid=20
parent mode=0o40755 uid=503 gid=20
Traceback (most recent call last):
File "desktop/dropbox/client/main.py", line 835, in wrapper
File "desktop/dropbox/client/main.py", line 6538, in finish_dropbox_boot
File "desktop/dropbox/client/message_queue.py", line 306, in _wrapped
File "desktop/dropbox/client/main.py", line 6063, in _init_components_for_account
File "desktop/dropbox/client/main.py", line 5986, in create_sync_engine
File "desktop/dropbox/sync_engine_boundary/factory.py", line 225, in make_sync_engine
File "desktop/dropbox/sync_engine/nucleus/classic_client/sync_engine.py", line 243, in __init__
File "desktop/dropbox/sync_engine/nucleus/classic_client/modern_client/modern_client.py", line 282, in __init__
File "desktop/dropbox/sync_engine/nucleus/classic_client/modern_client/base.py", line 192, in __init__
File "desktop/dropbox/fs_api/lifecycle.py", line 192, in __init__
File "desktop/dropbox/fs_api/lifecycle.py", line 206, in _create_thin_client
File "desktop/dropbox/fs_api/fs_api_adapter.py", line 50, in __init__
File "desktop/extensions/fs_api/fs_api_python.pyx", line 63, in fs_api_python.FsApiServer.__cinit__
fs_api_python.FsApiError: "Initializing fs api |>> Initializing platform |>> Opening worker root directory |>> open syscall |>> Permission denied"

Any help or ideas would really be appreciated