Can't start Dropbox because of permission error

Hi!

I have two profiles on my Mac: one for my personal use, and one for my professional use. The profile for personal use has admin rights, the profile for professional use does not (but I could set it so it did). It's the profiles you see and can log into when you turn the Mac on. 

I have installed the Dropbox app with both my Dropbox accounts (which are linked together) on my personal profile (the one with admin rights). It has been succesfully working for over two years.

I am now trying to install the Dropbox app on my professional profile on Mac (the one without admin rights), but I get this message error: Can't start Dropbox because of permission error.

I have tried two troubleshooting processes here on the Dropbox community, but non have worked (please see below). 

Can you please help me? I really need this to work for my job.

Thank you very much in advance!

Amélie

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METHODS TRIED TO SOLVE THE ISSUE:

1. Method one

This often happens with users who may have migrated old data and settings from another Mac to their current computer.

Operating system permissions prevent files from being viewed or edited by unauthorized logins. Permissions can be set any number of ways and can be restored manually through a fairly simple process. Please note that it is very important to follow these steps specifically as failure to do so may result in other issues. On a Mac OS X you can do the following:

1) Make sure the Dropbox desktop application is running

2) Click on the Dropbox icon in your menu bar and then click on the gear in the Notifications panel

3) Select 'Preferences'

4) Click on the 'Account' tab

5) Hold down the 'Option' key

6) Click on the 'Fix Permissions' button (make sure you're still holding down the 'Option' key.

This will allow Dropbox access to your home folder, Dropbox folder, and any required settings.

2. Method two

1) Select your home directory (the folder named after your computer's login) and press Command-I to "Get Info"
2) Scroll down to the "Sharing & Permissions" section at the bottom of the Get Info window
3) If everything is grayed out, click on the gold lock at the bottom right of the window. You'll be prompted for your login password. You'll need admin access to edit the permissions. If you are unable to unlock these privileges, talk to your system administrator to give you access to this folder.
4) Your name should already be on the list of sharing and permissions. If you aren't listed, then add yourself by clicking the + button.
5) Once your user is added, click your name and then click the gear menu at the bottom middle of the window, and choose "Make me the owner". If this option is grayed out you can skip to step 6.
6) Click the gear again and choose "Apply to enclosed items".

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ERROR INFO

bn.BUILD_KEY: Dropbox
bn.VERSION: 108.4.453
bn.constants.WINDOWS_SHELL_EXT_VERSION: 46
bn.is_frozen: True
machine_id: d6bd0a9a-82d1-5e9d-8e28-fb03b9a018a1
pid: 4238
ppid: 1
uid: 502
user_info: pwd.struct_passwd(pw_name='Work', pw_passwd='********', pw_uid=502, pw_gid=20, pw_gecos='Work', pw_dir='/Users/work', pw_shell='/bin/bash')
effective_user_info: pwd.struct_passwd(pw_name='Work', pw_passwd='********', pw_uid=502, pw_gid=20, pw_gecos='Work', pw_dir='/Users/work', pw_shell='/bin/bash')
euid: 502
gid: 20
egid: 20
group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'ameliebouan', '_serialnumberd'])
effective_group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'ameliebouan', '_serialnumberd'])
DYLD_LIBRARY_PATH: None
cwd: '/'
real_path='/'
mode=0o40755 uid=0 gid=80
parent mode=0o40755 uid=0 gid=80
HOME: '/Users/work'
appdata: '/Users/pro/.dropbox/instance1'
real_path='/Users/pro/.dropbox/instance1'
not found
parent not found
dropbox_path: '/Users/pro/Dropbox'
real_path='/Users/pro/Dropbox'
not found
parent not found
sys_executable: '/Applications/Dropbox.app/Contents/MacOS/Dropbox'
real_path='/Applications/Dropbox.app/Contents/MacOS/Dropbox'
mode=0o100755 uid=502 gid=20
parent mode=0o40755 uid=502 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/qk/8grpgjr52nx_zy2rmtkwfzg40000gp/T'
real_path='/private/var/folders/qk/8grpgjr52nx_zy2rmtkwfzg40000gp/T'
mode=0o40700 uid=502 gid=20
parent mode=0o40755 uid=502 gid=20
Traceback (most recent call last):
File "dropbox/client/main.pyc", line 1269, in safe_makedirs
File "os.pyc", line 213, in makedirs
File "os.pyc", line 213, in makedirs
File "os.pyc", line 223, in makedirs
PermissionError: [Errno 13] Permission denied: '/Users/pro'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "dropbox/client/main.pyc", line 7774, in main_startup
File "dropbox/client/main.pyc", line 2951, in run
File "dropbox/client/main.pyc", line 1715, in startup_low
File "dropbox/client/main.pyc", line 1296, in safe_makedirs
File "os.pyc", line 213, in makedirs
File "os.pyc", line 213, in makedirs
File "os.pyc", line 223, in makedirs
PermissionError: [Errno 13] Permission denied: '/Users/pro'