Erreur d'autorisation ?

Bonjour, 

j'ai rencontre un problème identique et ai desinstallé dropbox conformément aux indications et suis maintenant confronté a un nouveau problème, je ne peux plus installé dropbox sur mon ordinateur, le message suivant apparait 

pourriez vous m'aider? 

Merci. 

detail de l'aide: 

bn.BUILD_KEY: Dropbox
bn.VERSION: 6.4.14
bn.DROPBOXEXT_VERSION: failed
bn.is_frozen: True
pid: 66021
ppid: 227
uid: 501
user_info: pwd.struct_passwd(pw_name='Max', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='Max', pw_dir='/Users/Max', pw_shell='/bin/bash')
effective_user_info: pwd.struct_passwd(pw_name='Max', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='Max', pw_dir='/Users/Max', pw_shell='/bin/bash')
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: u'/Applications/Dropbox.app/Contents/Resources'
real_path=u'/Applications/Dropbox.app/Contents/Resources'
mode=040755 uid=501 gid=20
parent mode=040755 uid=501 gid=20
HOME: u'/Users/Max'
appdata: u'/Users/Max/.dropbox/instance2'
real_path=u'/Users/Max/.dropbox/instance2'
mode=040700 uid=501 gid=20
parent mode=040700 uid=501 gid=20
dropbox_path: u'/Users/Max/Dropbox'
real_path=u'/Volumes/Transcend/Dropbox (STONE CAPITAL)/Dropbox (STONE CAPITAL)'
not found
parent mode=040755 uid=501 gid=20
sys_executable: '/Applications/Dropbox.app/Contents/MacOS/python'
real_path='/Applications/Dropbox.app/Contents/MacOS/python'
mode=0100755 uid=501 gid=20
parent mode=040755 uid=501 gid=20
trace.__file__: '/Applications/Dropbox.app/Contents/Resources/lib/python2.7/site-packages.zip/dropbox/client/ui/common/boot_error.pyo'
real_path='/Applications/Dropbox.app/Contents/Resources/lib/python2.7/site-packages.zip/dropbox/client/ui/common/boot_error.pyo'
not found
parent not found
tempdir: u'/var/folders/k1/7shmhldx4sjfk4hcz9c65c7w0000gn/T'
real_path=u'/private/var/folders/k1/7shmhldx4sjfk4hcz9c65c7w0000gn/T'
mode=040700 uid=501 gid=20
parent mode=040755 uid=501 gid=20
Traceback (most recent call last):
File "dropbox/client/main.pyo", line 398, in wrapper
File "dropbox/client/main.pyo", line 4109, in finish_dropbox_boot
File "dropbox/client/main.pyo", line 4016, in _init_components_for_account
File "dropbox/client/main.pyo", line 4274, in finish_sync_engine_setup_for_account
File "dropbox/sync_engine_adapter/adapter.pyo", line 1114, in mount_dropbox_folder
File "dropbox/_sync_engine_packages/stable/sync_engine.pyo", line 624, in mount_dropbox_folder
File "dropbox/_sync_engine_packages/stable/block_cache.pyo", line 43, in __init__
File "dropbox/_sync_engine_packages/stable/block_cache.pyo", line 53, in _compute_max_size
File "dropbox/_sync_engine_packages/stable/file_system/util.pyo", line 85, in wrapped
File "contextlib.pyo", line 35, in __exit__
File "dropbox/shared/error_util.pyo", line 48, in convert_error
File "dropbox/shared/error_util.pyo", line 35, in convert_error
File "dropbox/_sync_engine_packages/stable/file_system/util.pyo", line 85, in wrapped
File "dropbox/_sync_engine_packages/stable/file_system/pythonos.pyo", line 124, in get_disk_space_info
FileNotFoundError: [Errno 2] No such file or directory: '/Users/Max/Dropbox/.dropbox.cache/prefetch_cache'

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