dropbox startet auf mac nicht mehr

Meine Dropbox startet unter einem Anwender (Admin) nicht mehr. 

Bereits neu installiert und die Terminalbefehle ausgeführt - trotzdem funktioniert es nicht.

Das ist die Fehlermeldung:

bn.BUILD_KEY: Dropbox
bn.VERSION: 3.10.8
bn.DROPBOXEXT_VERSION: failed
bn.is_frozen: True
pid: 653
ppid: 1
uid: 501
user_info: pwd.struct_passwd(pw_name='andreasfehrenbach', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='Andreas Fehrenbach', pw_dir='/Users/andreasfehrenbach', pw_shell='/bin/bash')
effective_user_info: pwd.struct_passwd(pw_name='andreasfehrenbach', pw_passwd='********', pw_uid=501, pw_gid=20, pw_gecos='Andreas Fehrenbach', pw_dir='/Users/andreasfehrenbach', 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', 'tobiasfehrenbach'])
effective_group_info: grp.struct_group(gr_name='staff', gr_passwd='*', gr_gid=20, gr_mem=['root', 'tobiasfehrenbach'])
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/andreasfehrenbach'
appdata: u'/Users/andreasfehrenbach/.dropbox/instance1'
real_path=u'/Users/andreasfehrenbach/.dropbox/instance1'
mode=040700 uid=501 gid=20
parent mode=040700 uid=501 gid=20
dropbox_path: u'/Users/andreasfehrenbach/Dropbox'
real_path=u'/Users/andreasfehrenbach/Dropbox'
mode=040700 uid=501 gid=20
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/26/2ww1qqr12qj66p8p5xt53h7c0000gn/T'
real_path=u'/private/var/folders/26/2ww1qqr12qj66p8p5xt53h7c0000gn/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 3572, in main_startup
File "dropbox/client/main.pyo", line 1785, in run
File "dropbox/client/main.pyo", line 2087, in load_config
File "dropbox/client/config.pyo", line 41, in __getitem__
File "dropbox/sqlite3_helpers.pyo", line 143, in execute
DatabaseError: database disk image is malformed